diff --git a/src/neo/SmartContract/ApplicationEngine.Contract.cs b/src/neo/SmartContract/ApplicationEngine.Contract.cs
index 5f274359cf..7e9f9e9c1b 100644
--- a/src/neo/SmartContract/ApplicationEngine.Contract.cs
+++ b/src/neo/SmartContract/ApplicationEngine.Contract.cs
@@ -85,7 +85,7 @@ private void CallContractInternal(ContractState contract, ContractMethodDescript
         protected internal void CallNativeContract(string name)
         {
             NativeContract contract = NativeContract.GetContract(name);
-            if (contract is null || contract.ActiveBlockIndex > Snapshot.PersistingBlock.Index)
+            if (contract is null || contract.ActiveBlockIndex > Snapshot.Height)
                 throw new InvalidOperationException();
             contract.Invoke(this);
         }