1 files changed, 2 insertions, 2 deletions
diff --git a/src/ARMeilleure/Decoders/OpCodeAluImm.cs b/src/ARMeilleure/Decoders/OpCodeAluImm.cs
index 91aa9553..0d2f7202 100644
--- a/src/ARMeilleure/Decoders/OpCodeAluImm.cs
+++ b/src/ARMeilleure/Decoders/OpCodeAluImm.cs
@@ -33,8 +33,8 @@ namespace ARMeilleure.Decoders
             }
             else
             {
-                throw new ArgumentException(nameof(opCode));
+                throw new ArgumentException($"Invalid data operation: {DataOp}", nameof(opCode));
             }
         }
     }
-}
-\ No newline at end of file
+}