diff --git a/services/adapter/window_adapter/src/window_adapter.cpp b/services/adapter/window_adapter/src/window_adapter.cpp
index cb98041b94608a32cc7989c414b150709d93f99f..b68881b9f5c80259bf98b7a3519684dde8f56e2e 100644
--- a/services/adapter/window_adapter/src/window_adapter.cpp
+++ b/services/adapter/window_adapter/src/window_adapter.cpp
@@ -74,8 +74,7 @@ void WindowAdapter::RegisterCallingWindowInfoChangedListener(const WindowDisplay
         IMSA_HILOGE("failed to create listener");
         return;
     }
-    auto wmErr = WMError::WM_OK;
-    wmErr = WindowManagerLite::GetInstance().RegisterCallingWindowDisplayChangedListener(listener);
+    auto wmErr = WindowManagerLite::GetInstance().RegisterCallingWindowDisplayChangedListener(listener);
     IMSA_HILOGI("register focus changed listener ret: %{public}d", wmErr);
 #endif
 }