diff --git a/solidity/contracts/utils/OracleTypehash.sol b/solidity/contracts/utils/OracleTypehash.sol
index 77ae352..5ec9900 100644
--- a/solidity/contracts/utils/OracleTypehash.sol
+++ b/solidity/contracts/utils/OracleTypehash.sol
@@ -3,7 +3,7 @@ pragma solidity ^0.8.19;
 
 library OracleTypehash {
   bytes32 public constant CREATE_TYPEHASH =
-    keccak256('createRequest(Request _request,bytes32 _ipfsHash,AccessControl _accessControl');
+    keccak256('createRequest(Request _request,bytes32 _ipfsHash,AccessControl _accessControl)');
 
   bytes32 public constant PROPOSE_TYPEHASH =
     keccak256('proposeResponse(Request _request,Response _response,AccessControl _accessControl)');