diff --git a/src/Gui/GuiApplication.cpp b/src/Gui/GuiApplication.cpp
index eb7801544..00b15f2c4 100644
--- a/src/Gui/GuiApplication.cpp
+++ b/src/Gui/GuiApplication.cpp
@@ -62,6 +62,8 @@ using namespace Gui;
 GUIApplication::GUIApplication(int & argc, char ** argv)
     : GUIApplicationNativeEventAware(argc, argv)
 {
+    connect(this, SIGNAL(commitDataRequest(QSessionManager &)),
+            SLOT(slotCommitData(QSessionManager &)), Qt::DirectConnection);
 }
 
 GUIApplication::~GUIApplication()
@@ -130,7 +132,7 @@ bool GUIApplication::notify (QObject * receiver, QEvent * event)
     return true;
 }
 
-void GUIApplication::commitData(QSessionManager &manager)
+void GUIApplication::slotCommitData(QSessionManager &manager)
 {
     if (manager.allowsInteraction()) {
         if (!Gui::getMainWindow()->close()) {
diff --git a/src/Gui/GuiApplication.h b/src/Gui/GuiApplication.h
index b245ae02f..1f781a93f 100644
--- a/src/Gui/GuiApplication.h
+++ b/src/Gui/GuiApplication.h
@@ -49,11 +49,13 @@ public:
      * where an unhandled exception comes from.
      */
     bool notify (QObject * receiver, QEvent * event);
-    void commitData(QSessionManager &manager);
 
     /// Pointer to exceptions caught in Qt event handler
     boost::shared_ptr<Base::SystemExitException> caughtException;
 
+public Q_SLOTS:
+    void slotCommitData(QSessionManager &manager);
+
 protected:
     bool event(QEvent * event);
 };