diff --git a/src/msw/window.cpp b/src/msw/window.cpp
index be2685431d..eadc2f5700 100644
--- a/src/msw/window.cpp
+++ b/src/msw/window.cpp
@@ -4217,7 +4217,7 @@ bool wxWindowMSW::HandleQueryEndSession(long logOff, bool *mayEnd)
     event.SetCanVeto(true);
     event.SetLoggingOff(logOff == (long)ENDSESSION_LOGOFF);
 
-    bool rc = wxTheApp->ProcessEvent(event);
+    bool rc = wxTheApp->SafelyProcessEvent(event);
 
     if ( rc )
     {
@@ -4244,7 +4244,7 @@ bool wxWindowMSW::HandleEndSession(bool endSession, long logOff)
     event.SetCanVeto(false);
     event.SetLoggingOff((logOff & ENDSESSION_LOGOFF) != 0);
 
-    return wxTheApp->ProcessEvent(event);
+    return wxTheApp->SafelyProcessEvent(event);
 }
 
 // ---------------------------------------------------------------------------