diff --git a/Service/Execute/Step/SwapDoneState.cs b/Service/Execute/Step/SwapDoneState.cs
index 425c7b7..9269943 100644
--- a/Service/Execute/Step/SwapDoneState.cs
+++ b/Service/Execute/Step/SwapDoneState.cs
@@ -116,7 +116,7 @@ public class SwapDoneState : IState
         return Invoker.Invoke("wait exist radar", 1000, 5, machine.IsCanceled,
             () => machine.RadarOutFlag, () =>
             {
-                if (!PlcApi.ExitRadar())
+                if (PlcApi.ExitRadar())
                 {
                     _log.Info("exist radar false");