diff --git a/src/kwin4.cpp b/src/kwin4.cpp
index b4d58384..1d5a02ab 100644
--- a/src/kwin4.cpp
+++ b/src/kwin4.cpp
@@ -209,12 +209,12 @@ KWin4App::~KWin4App()
 }
 
 
-// Called by KMainWindow when the last window of the application is
-bool KWin4App::queryExit()
+// Called by Qt when the window is closed
+void KWin4App::closeEvent(QCloseEvent *event)
 {
   endGame();
   saveProperties();
-  return true;
+  KXmlGuiWindow::closeEvent(event);
 }
 
 
diff --git a/src/kwin4.h b/src/kwin4.h
index af0a2e5e..8e54a7d1 100644
--- a/src/kwin4.h
+++ b/src/kwin4.h
@@ -123,12 +123,9 @@ class KWin4App : public KXmlGuiWindow
     */
     virtual void readProperties(const KConfigGroup& grp);
 
-    /** Called by KMainWindow when the last window of the application is
-     * going to be closed.
-     * @see KMainWindow#queryExit
-     * @see KMainWindow#closeEvent
+    /** Called by Qt when closing the window
      */
-    virtual bool queryExit();
+    void closeEvent(QCloseEvent *event);
 
     /** Retrieve the theme file from the theme index number give.
       * @param idx The theme index number [0..]