diff --git a/src/Neo/SmartContract/Native/FungibleToken.cs b/src/Neo/SmartContract/Native/FungibleToken.cs
index 2175f43dfd..ba6c6d4723 100644
--- a/src/Neo/SmartContract/Native/FungibleToken.cs
+++ b/src/Neo/SmartContract/Native/FungibleToken.cs
@@ -65,7 +65,7 @@ protected FungibleToken() : base()
             Factor = BigInteger.Pow(10, Decimals);
         }
 
-        protected override void OnManifestCompose(ContractManifest manifest)
+        protected override void OnManifestCompose(IsHardforkEnabledDelegate hfChecker, uint blockHeight, ContractManifest manifest)
         {
             manifest.SupportedStandards = new[] { "NEP-17" };
         }
diff --git a/src/Neo/SmartContract/Native/NativeContract.cs b/src/Neo/SmartContract/Native/NativeContract.cs
index 8b355464c9..1ad0ae3a35 100644
--- a/src/Neo/SmartContract/Native/NativeContract.cs
+++ b/src/Neo/SmartContract/Native/NativeContract.cs
@@ -259,7 +259,7 @@ public ContractState GetContractState(IsHardforkEnabledDelegate hfChecker, uint
                 Extra = null
             };
 
-            OnManifestCompose(manifest);
+            OnManifestCompose(hfChecker, blockHeight, manifest);
 
             // Return ContractState
             return new ContractState
@@ -271,7 +271,7 @@ public ContractState GetContractState(IsHardforkEnabledDelegate hfChecker, uint
             };
         }
 
-        protected virtual void OnManifestCompose(ContractManifest manifest) { }
+        protected virtual void OnManifestCompose(IsHardforkEnabledDelegate hfChecker, uint blockHeight, ContractManifest manifest) { }
 
         /// <summary>
         /// It is the initialize block
diff --git a/src/Neo/SmartContract/Native/NeoToken.cs b/src/Neo/SmartContract/Native/NeoToken.cs
index 7e945d8481..0eb28388e1 100644
--- a/src/Neo/SmartContract/Native/NeoToken.cs
+++ b/src/Neo/SmartContract/Native/NeoToken.cs
@@ -107,6 +107,15 @@ private protected override async ContractTask PostTransferAsync(ApplicationEngin
                 await GAS.Mint(engine, distribution.Account, distribution.Amount, callOnPayment);
         }
 
+        internal override void OnManifestCompose(IsHardforkEnabledDelegate hfChecker, uint blockHeight, ContractManifest manifest)
+        {
+            if (hfChecker(Hardfork.HF_Echidna, blockHeight)) {
+                manifest.SupportedStandards = new[] { "NEP-17", "NEP-27" };
+            } else {
+                manifest.SupportedStandards = new[] { "NEP-17" };
+            }
+        }
+
         private GasDistribution DistributeGas(ApplicationEngine engine, UInt160 account, NeoAccountState state)
         {
             // PersistingBlock is null when running under the debugger
diff --git a/tests/Neo.UnitTests/SmartContract/Native/UT_NativeContract.cs b/tests/Neo.UnitTests/SmartContract/Native/UT_NativeContract.cs
index d5d179428c..f742e11471 100644
--- a/tests/Neo.UnitTests/SmartContract/Native/UT_NativeContract.cs
+++ b/tests/Neo.UnitTests/SmartContract/Native/UT_NativeContract.cs
@@ -45,7 +45,7 @@ public void TestSetup()
                 {"StdLib", """{"id":-2,"updatecounter":0,"hash":"0xacce6fd80d44e1796aa0c2c625e9e4e0ce39efc0","nef":{"magic":860243278,"compiler":"neo-core-v3.0","source":"","tokens":[],"script":"EEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0A=","checksum":2681632925},"manifest":{"name":"StdLib","groups":[],"features":{},"supportedstandards":[],"abi":{"methods":[{"name":"atoi","parameters":[{"name":"value","type":"String"}],"returntype":"Integer","offset":0,"safe":true},{"name":"atoi","parameters":[{"name":"value","type":"String"},{"name":"base","type":"Integer"}],"returntype":"Integer","offset":7,"safe":true},{"name":"base58CheckDecode","parameters":[{"name":"s","type":"String"}],"returntype":"ByteArray","offset":14,"safe":true},{"name":"base58CheckEncode","parameters":[{"name":"data","type":"ByteArray"}],"returntype":"String","offset":21,"safe":true},{"name":"base58Decode","parameters":[{"name":"s","type":"String"}],"returntype":"ByteArray","offset":28,"safe":true},{"name":"base58Encode","parameters":[{"name":"data","type":"ByteArray"}],"returntype":"String","offset":35,"safe":true},{"name":"base64Decode","parameters":[{"name":"s","type":"String"}],"returntype":"ByteArray","offset":42,"safe":true},{"name":"base64Encode","parameters":[{"name":"data","type":"ByteArray"}],"returntype":"String","offset":49,"safe":true},{"name":"base64UrlDecode","parameters":[{"name":"s","type":"String"}],"returntype":"String","offset":56,"safe":true},{"name":"base64UrlEncode","parameters":[{"name":"data","type":"String"}],"returntype":"String","offset":63,"safe":true},{"name":"deserialize","parameters":[{"name":"data","type":"ByteArray"}],"returntype":"Any","offset":70,"safe":true},{"name":"itoa","parameters":[{"name":"value","type":"Integer"}],"returntype":"String","offset":77,"safe":true},{"name":"itoa","parameters":[{"name":"value","type":"Integer"},{"name":"base","type":"Integer"}],"returntype":"String","offset":84,"safe":true},{"name":"jsonDeserialize","parameters":[{"name":"json","type":"ByteArray"}],"returntype":"Any","offset":91,"safe":true},{"name":"jsonSerialize","parameters":[{"name":"item","type":"Any"}],"returntype":"ByteArray","offset":98,"safe":true},{"name":"memoryCompare","parameters":[{"name":"str1","type":"ByteArray"},{"name":"str2","type":"ByteArray"}],"returntype":"Integer","offset":105,"safe":true},{"name":"memorySearch","parameters":[{"name":"mem","type":"ByteArray"},{"name":"value","type":"ByteArray"}],"returntype":"Integer","offset":112,"safe":true},{"name":"memorySearch","parameters":[{"name":"mem","type":"ByteArray"},{"name":"value","type":"ByteArray"},{"name":"start","type":"Integer"}],"returntype":"Integer","offset":119,"safe":true},{"name":"memorySearch","parameters":[{"name":"mem","type":"ByteArray"},{"name":"value","type":"ByteArray"},{"name":"start","type":"Integer"},{"name":"backward","type":"Boolean"}],"returntype":"Integer","offset":126,"safe":true},{"name":"serialize","parameters":[{"name":"item","type":"Any"}],"returntype":"ByteArray","offset":133,"safe":true},{"name":"strLen","parameters":[{"name":"str","type":"String"}],"returntype":"Integer","offset":140,"safe":true},{"name":"stringSplit","parameters":[{"name":"str","type":"String"},{"name":"separator","type":"String"}],"returntype":"Array","offset":147,"safe":true},{"name":"stringSplit","parameters":[{"name":"str","type":"String"},{"name":"separator","type":"String"},{"name":"removeEmptyEntries","type":"Boolean"}],"returntype":"Array","offset":154,"safe":true}],"events":[]},"permissions":[{"contract":"*","methods":"*"}],"trusts":[],"extra":null}}"""},
                 {"CryptoLib", """{"id":-3,"updatecounter":0,"hash":"0x726cb6e0cd8628a1350a611384688911ab75f51b","nef":{"magic":860243278,"compiler":"neo-core-v3.0","source":"","tokens":[],"script":"EEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0A=","checksum":1094259016},"manifest":{"name":"CryptoLib","groups":[],"features":{},"supportedstandards":[],"abi":{"methods":[{"name":"bls12381Add","parameters":[{"name":"x","type":"InteropInterface"},{"name":"y","type":"InteropInterface"}],"returntype":"InteropInterface","offset":0,"safe":true},{"name":"bls12381Deserialize","parameters":[{"name":"data","type":"ByteArray"}],"returntype":"InteropInterface","offset":7,"safe":true},{"name":"bls12381Equal","parameters":[{"name":"x","type":"InteropInterface"},{"name":"y","type":"InteropInterface"}],"returntype":"Boolean","offset":14,"safe":true},{"name":"bls12381Mul","parameters":[{"name":"x","type":"InteropInterface"},{"name":"mul","type":"ByteArray"},{"name":"neg","type":"Boolean"}],"returntype":"InteropInterface","offset":21,"safe":true},{"name":"bls12381Pairing","parameters":[{"name":"g1","type":"InteropInterface"},{"name":"g2","type":"InteropInterface"}],"returntype":"InteropInterface","offset":28,"safe":true},{"name":"bls12381Serialize","parameters":[{"name":"g","type":"InteropInterface"}],"returntype":"ByteArray","offset":35,"safe":true},{"name":"keccak256","parameters":[{"name":"data","type":"ByteArray"}],"returntype":"ByteArray","offset":42,"safe":true},{"name":"murmur32","parameters":[{"name":"data","type":"ByteArray"},{"name":"seed","type":"Integer"}],"returntype":"ByteArray","offset":49,"safe":true},{"name":"ripemd160","parameters":[{"name":"data","type":"ByteArray"}],"returntype":"ByteArray","offset":56,"safe":true},{"name":"sha256","parameters":[{"name":"data","type":"ByteArray"}],"returntype":"ByteArray","offset":63,"safe":true},{"name":"verifyWithECDsa","parameters":[{"name":"message","type":"ByteArray"},{"name":"pubkey","type":"ByteArray"},{"name":"signature","type":"ByteArray"},{"name":"curveHash","type":"Integer"}],"returntype":"Boolean","offset":70,"safe":true}],"events":[]},"permissions":[{"contract":"*","methods":"*"}],"trusts":[],"extra":null}}"""},
                 {"LedgerContract", """{"id":-4,"updatecounter":0,"hash":"0xda65b600f7124ce6c79950c1772a36403104f2be","nef":{"magic":860243278,"compiler":"neo-core-v3.0","source":"","tokens":[],"script":"EEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0A=","checksum":1110259869},"manifest":{"name":"LedgerContract","groups":[],"features":{},"supportedstandards":[],"abi":{"methods":[{"name":"currentHash","parameters":[],"returntype":"Hash256","offset":0,"safe":true},{"name":"currentIndex","parameters":[],"returntype":"Integer","offset":7,"safe":true},{"name":"getBlock","parameters":[{"name":"indexOrHash","type":"ByteArray"}],"returntype":"Array","offset":14,"safe":true},{"name":"getTransaction","parameters":[{"name":"hash","type":"Hash256"}],"returntype":"Array","offset":21,"safe":true},{"name":"getTransactionFromBlock","parameters":[{"name":"blockIndexOrHash","type":"ByteArray"},{"name":"txIndex","type":"Integer"}],"returntype":"Array","offset":28,"safe":true},{"name":"getTransactionHeight","parameters":[{"name":"hash","type":"Hash256"}],"returntype":"Integer","offset":35,"safe":true},{"name":"getTransactionSigners","parameters":[{"name":"hash","type":"Hash256"}],"returntype":"Array","offset":42,"safe":true},{"name":"getTransactionVMState","parameters":[{"name":"hash","type":"Hash256"}],"returntype":"Integer","offset":49,"safe":true}],"events":[]},"permissions":[{"contract":"*","methods":"*"}],"trusts":[],"extra":null}}"""},
-                {"NeoToken", """{"id":-5,"updatecounter":0,"hash":"0xef4073a0f2b305a38ec4050e4d3d28bc40ea63f5","nef":{"magic":860243278,"compiler":"neo-core-v3.0","source":"","tokens":[],"script":"EEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dA","checksum":1991619121},"manifest":{"name":"NeoToken","groups":[],"features":{},"supportedstandards":["NEP-17"],"abi":{"methods":[{"name":"balanceOf","parameters":[{"name":"account","type":"Hash160"}],"returntype":"Integer","offset":0,"safe":true},{"name":"decimals","parameters":[],"returntype":"Integer","offset":7,"safe":true},{"name":"getAccountState","parameters":[{"name":"account","type":"Hash160"}],"returntype":"Array","offset":14,"safe":true},{"name":"getAllCandidates","parameters":[],"returntype":"InteropInterface","offset":21,"safe":true},{"name":"getCandidateVote","parameters":[{"name":"pubKey","type":"PublicKey"}],"returntype":"Integer","offset":28,"safe":true},{"name":"getCandidates","parameters":[],"returntype":"Array","offset":35,"safe":true},{"name":"getCommittee","parameters":[],"returntype":"Array","offset":42,"safe":true},{"name":"getCommitteeAddress","parameters":[],"returntype":"Hash160","offset":49,"safe":true},{"name":"getGasPerBlock","parameters":[],"returntype":"Integer","offset":56,"safe":true},{"name":"getNextBlockValidators","parameters":[],"returntype":"Array","offset":63,"safe":true},{"name":"getRegisterPrice","parameters":[],"returntype":"Integer","offset":70,"safe":true},{"name":"onNEP17Payment","parameters":[{"name":"from","type":"Hash160"},{"name":"amount","type":"Integer"},{"name":"data","type":"Any"}],"returntype":"Void","offset":77,"safe":false},{"name":"registerCandidate","parameters":[{"name":"pubkey","type":"PublicKey"}],"returntype":"Boolean","offset":84,"safe":false},{"name":"setGasPerBlock","parameters":[{"name":"gasPerBlock","type":"Integer"}],"returntype":"Void","offset":91,"safe":false},{"name":"setRegisterPrice","parameters":[{"name":"registerPrice","type":"Integer"}],"returntype":"Void","offset":98,"safe":false},{"name":"symbol","parameters":[],"returntype":"String","offset":105,"safe":true},{"name":"totalSupply","parameters":[],"returntype":"Integer","offset":112,"safe":true},{"name":"transfer","parameters":[{"name":"from","type":"Hash160"},{"name":"to","type":"Hash160"},{"name":"amount","type":"Integer"},{"name":"data","type":"Any"}],"returntype":"Boolean","offset":119,"safe":false},{"name":"unclaimedGas","parameters":[{"name":"account","type":"Hash160"},{"name":"end","type":"Integer"}],"returntype":"Integer","offset":126,"safe":true},{"name":"unregisterCandidate","parameters":[{"name":"pubkey","type":"PublicKey"}],"returntype":"Boolean","offset":133,"safe":false},{"name":"vote","parameters":[{"name":"account","type":"Hash160"},{"name":"voteTo","type":"PublicKey"}],"returntype":"Boolean","offset":140,"safe":false}],"events":[{"name":"Transfer","parameters":[{"name":"from","type":"Hash160"},{"name":"to","type":"Hash160"},{"name":"amount","type":"Integer"}]},{"name":"CandidateStateChanged","parameters":[{"name":"pubkey","type":"PublicKey"},{"name":"registered","type":"Boolean"},{"name":"votes","type":"Integer"}]},{"name":"Vote","parameters":[{"name":"account","type":"Hash160"},{"name":"from","type":"PublicKey"},{"name":"to","type":"PublicKey"},{"name":"amount","type":"Integer"}]},{"name":"CommitteeChanged","parameters":[{"name":"old","type":"Array"},{"name":"new","type":"Array"}]}]},"permissions":[{"contract":"*","methods":"*"}],"trusts":[],"extra":null}}"""},
+                {"NeoToken", """{"id":-5,"updatecounter":0,"hash":"0xef4073a0f2b305a38ec4050e4d3d28bc40ea63f5","nef":{"magic":860243278,"compiler":"neo-core-v3.0","source":"","tokens":[],"script":"EEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dA","checksum":1991619121},"manifest":{"name":"NeoToken","groups":[],"features":{},"supportedstandards":["NEP-17","NEP-27"],"abi":{"methods":[{"name":"balanceOf","parameters":[{"name":"account","type":"Hash160"}],"returntype":"Integer","offset":0,"safe":true},{"name":"decimals","parameters":[],"returntype":"Integer","offset":7,"safe":true},{"name":"getAccountState","parameters":[{"name":"account","type":"Hash160"}],"returntype":"Array","offset":14,"safe":true},{"name":"getAllCandidates","parameters":[],"returntype":"InteropInterface","offset":21,"safe":true},{"name":"getCandidateVote","parameters":[{"name":"pubKey","type":"PublicKey"}],"returntype":"Integer","offset":28,"safe":true},{"name":"getCandidates","parameters":[],"returntype":"Array","offset":35,"safe":true},{"name":"getCommittee","parameters":[],"returntype":"Array","offset":42,"safe":true},{"name":"getCommitteeAddress","parameters":[],"returntype":"Hash160","offset":49,"safe":true},{"name":"getGasPerBlock","parameters":[],"returntype":"Integer","offset":56,"safe":true},{"name":"getNextBlockValidators","parameters":[],"returntype":"Array","offset":63,"safe":true},{"name":"getRegisterPrice","parameters":[],"returntype":"Integer","offset":70,"safe":true},{"name":"onNEP17Payment","parameters":[{"name":"from","type":"Hash160"},{"name":"amount","type":"Integer"},{"name":"data","type":"Any"}],"returntype":"Void","offset":77,"safe":false},{"name":"registerCandidate","parameters":[{"name":"pubkey","type":"PublicKey"}],"returntype":"Boolean","offset":84,"safe":false},{"name":"setGasPerBlock","parameters":[{"name":"gasPerBlock","type":"Integer"}],"returntype":"Void","offset":91,"safe":false},{"name":"setRegisterPrice","parameters":[{"name":"registerPrice","type":"Integer"}],"returntype":"Void","offset":98,"safe":false},{"name":"symbol","parameters":[],"returntype":"String","offset":105,"safe":true},{"name":"totalSupply","parameters":[],"returntype":"Integer","offset":112,"safe":true},{"name":"transfer","parameters":[{"name":"from","type":"Hash160"},{"name":"to","type":"Hash160"},{"name":"amount","type":"Integer"},{"name":"data","type":"Any"}],"returntype":"Boolean","offset":119,"safe":false},{"name":"unclaimedGas","parameters":[{"name":"account","type":"Hash160"},{"name":"end","type":"Integer"}],"returntype":"Integer","offset":126,"safe":true},{"name":"unregisterCandidate","parameters":[{"name":"pubkey","type":"PublicKey"}],"returntype":"Boolean","offset":133,"safe":false},{"name":"vote","parameters":[{"name":"account","type":"Hash160"},{"name":"voteTo","type":"PublicKey"}],"returntype":"Boolean","offset":140,"safe":false}],"events":[{"name":"Transfer","parameters":[{"name":"from","type":"Hash160"},{"name":"to","type":"Hash160"},{"name":"amount","type":"Integer"}]},{"name":"CandidateStateChanged","parameters":[{"name":"pubkey","type":"PublicKey"},{"name":"registered","type":"Boolean"},{"name":"votes","type":"Integer"}]},{"name":"Vote","parameters":[{"name":"account","type":"Hash160"},{"name":"from","type":"PublicKey"},{"name":"to","type":"PublicKey"},{"name":"amount","type":"Integer"}]},{"name":"CommitteeChanged","parameters":[{"name":"old","type":"Array"},{"name":"new","type":"Array"}]}]},"permissions":[{"contract":"*","methods":"*"}],"trusts":[],"extra":null}}"""},
                 {"GasToken", """{"id":-6,"updatecounter":0,"hash":"0xd2a4cff31913016155e38e474a2c06d08be276cf","nef":{"magic":860243278,"compiler":"neo-core-v3.0","source":"","tokens":[],"script":"EEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0A=","checksum":2663858513},"manifest":{"name":"GasToken","groups":[],"features":{},"supportedstandards":["NEP-17"],"abi":{"methods":[{"name":"balanceOf","parameters":[{"name":"account","type":"Hash160"}],"returntype":"Integer","offset":0,"safe":true},{"name":"decimals","parameters":[],"returntype":"Integer","offset":7,"safe":true},{"name":"symbol","parameters":[],"returntype":"String","offset":14,"safe":true},{"name":"totalSupply","parameters":[],"returntype":"Integer","offset":21,"safe":true},{"name":"transfer","parameters":[{"name":"from","type":"Hash160"},{"name":"to","type":"Hash160"},{"name":"amount","type":"Integer"},{"name":"data","type":"Any"}],"returntype":"Boolean","offset":28,"safe":false}],"events":[{"name":"Transfer","parameters":[{"name":"from","type":"Hash160"},{"name":"to","type":"Hash160"},{"name":"amount","type":"Integer"}]}]},"permissions":[{"contract":"*","methods":"*"}],"trusts":[],"extra":null}}"""},
                 {"PolicyContract", """{"id":-7,"updatecounter":0,"hash":"0xcc5e4edd9f5f8dba8bb65734541df7a1c081c67b","nef":{"magic":860243278,"compiler":"neo-core-v3.0","source":"","tokens":[],"script":"EEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0A=","checksum":1094259016},"manifest":{"name":"PolicyContract","groups":[],"features":{},"supportedstandards":[],"abi":{"methods":[{"name":"blockAccount","parameters":[{"name":"account","type":"Hash160"}],"returntype":"Boolean","offset":0,"safe":false},{"name":"getAttributeFee","parameters":[{"name":"attributeType","type":"Integer"}],"returntype":"Integer","offset":7,"safe":true},{"name":"getExecFeeFactor","parameters":[],"returntype":"Integer","offset":14,"safe":true},{"name":"getFeePerByte","parameters":[],"returntype":"Integer","offset":21,"safe":true},{"name":"getStoragePrice","parameters":[],"returntype":"Integer","offset":28,"safe":true},{"name":"isBlocked","parameters":[{"name":"account","type":"Hash160"}],"returntype":"Boolean","offset":35,"safe":true},{"name":"setAttributeFee","parameters":[{"name":"attributeType","type":"Integer"},{"name":"value","type":"Integer"}],"returntype":"Void","offset":42,"safe":false},{"name":"setExecFeeFactor","parameters":[{"name":"value","type":"Integer"}],"returntype":"Void","offset":49,"safe":false},{"name":"setFeePerByte","parameters":[{"name":"value","type":"Integer"}],"returntype":"Void","offset":56,"safe":false},{"name":"setStoragePrice","parameters":[{"name":"value","type":"Integer"}],"returntype":"Void","offset":63,"safe":false},{"name":"unblockAccount","parameters":[{"name":"account","type":"Hash160"}],"returntype":"Boolean","offset":70,"safe":false}],"events":[]},"permissions":[{"contract":"*","methods":"*"}],"trusts":[],"extra":null}}"""},
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