diff --git a/Service/Execute/Step/DoSwappingState.cs b/Service/Execute/Step/DoSwappingState.cs
index 33521d2..ae2d6c3 100644
--- a/Service/Execute/Step/DoSwappingState.cs
+++ b/Service/Execute/Step/DoSwappingState.cs
@@ -116,7 +116,7 @@ public class DoSwappingState : IState
     /// <returns></returns>
     public InvokeStatus StartSwapping(SwappingStateMachine machine)
     {
-        return Invoker.Invoke("UnLockCar", 1000, 5, machine.IsCanceled,
+        return Invoker.Invoke("StartSwapping", 1000, 5, machine.IsCanceled,
             () => machine.StartSwappingFlag, () =>
             {
                 Task<bool> result = TBoxApi.UnLockCarManyTimes(machine.RfidReadModel.VelVin);