diff --git a/src/neo/SmartContract/ApplicationEngine.Contract.cs b/src/neo/SmartContract/ApplicationEngine.Contract.cs
index 31407a596c..ed2557f356 100644
--- a/src/neo/SmartContract/ApplicationEngine.Contract.cs
+++ b/src/neo/SmartContract/ApplicationEngine.Contract.cs
@@ -139,6 +139,7 @@ private void CallContractInternal(UInt160 contractHash, string method, Array arg
 
             ContractMethodDescriptor md = contract.Manifest.Abi.GetMethod(method);
             if (md is null) throw new InvalidOperationException();
+            if (args.Count != md.Parameters.Length) throw new InvalidOperationException();
             int rvcount = md.ReturnType == ContractParameterType.Void ? 0 : 1;
             ExecutionContext context_new = LoadScript(contract.Script, rvcount);
             state = context_new.GetState<ExecutionContextState>();