diff --git a/BoosterManager/Commands.cs b/BoosterManager/Commands.cs
index 8961d34..901c460 100644
--- a/BoosterManager/Commands.cs
+++ b/BoosterManager/Commands.cs
@@ -1139,10 +1139,7 @@ internal static class Commands {
 
 			ItemIdentifier itemIdentifier;
 			try {
-				itemIdentifier = new ItemIdentifier(itemIdentifierAsText);
-				if (marketable != null) {
-					itemIdentifier.Marketable = marketable;
-				}
+				itemIdentifier = new ItemIdentifier(itemIdentifierAsText, marketable);
 			} catch (Exception) {
 				return FormatBotResponse(bot, String.Format("Invalid Item Identifier: {0}", itemIdentifierAsText));
 			}
@@ -1231,10 +1228,7 @@ internal static class Commands {
 
 			ItemIdentifier itemIdentifier;
 			try {
-				itemIdentifier = new ItemIdentifier(itemIdentifierAsText);
-				if (marketable != null) {
-					itemIdentifier.Marketable = marketable;
-				}
+				itemIdentifier = new ItemIdentifier(itemIdentifierAsText, marketable);
 			} catch (Exception) {
 				return FormatBotResponse(bot, String.Format("Invalid Item Identifier: {0}", itemIdentifierAsText));
 			}
@@ -1362,10 +1356,7 @@ internal static class Commands {
 			List<ItemIdentifier> itemIdentifiers = new List<ItemIdentifier>();
 			foreach (string itemIdentifierString in itemIdentifierStrings) {
 				try {
-					ItemIdentifier itemIdentifier = new ItemIdentifier(itemIdentifierString);
-					if (marketable != null) {
-						itemIdentifier.Marketable = marketable;
-					}
+					ItemIdentifier itemIdentifier = new ItemIdentifier(itemIdentifierString, marketable);
 					itemIdentifiers.Add(itemIdentifier);
 				} catch (Exception) {
 					return FormatBotResponse(bot, String.Format("Invalid Item Identifier: {0}", itemIdentifierString));
diff --git a/BoosterManager/Data/ItemIdentifier.cs b/BoosterManager/Data/ItemIdentifier.cs
index 4660933..e9b884e 100644
--- a/BoosterManager/Data/ItemIdentifier.cs
+++ b/BoosterManager/Data/ItemIdentifier.cs
@@ -24,7 +24,9 @@ internal sealed class ItemIdentifier {
 
 		internal ItemIdentifier() {}
 		
-		internal ItemIdentifier(string identityString) {
+		internal ItemIdentifier(string identityString, bool? marketable = null) {
+			Marketable = marketable;
+
 			string[] ids = identityString.Split(Separator);
 			uint appID;
 			ulong contextID;