diff --git a/src/mac/carbon/frame.cpp b/src/mac/carbon/frame.cpp
index 4d83421744..09544ddd4d 100644
--- a/src/mac/carbon/frame.cpp
+++ b/src/mac/carbon/frame.cpp
@@ -231,6 +231,12 @@ void wxFrame::OnActivate(wxActivateEvent& event)
 	    {
 	    	m_frameMenuBar->MacInstallMenuBar() ;
 	    }
+	    else if (wxTheApp->GetTopWindow() && wxTheApp->GetTopWindow()->IsKindOf(CLASSINFO(wxFrame)))
+        {
+            // Trying toplevel frame menbar
+            if( ((wxFrame*)wxTheApp->GetTopWindow())->GetMenuBar() )
+	            ((wxFrame*)wxTheApp->GetTopWindow())->GetMenuBar()->MacInstallMenuBar();
+ 	    }
 	}
 }
 
diff --git a/src/mac/frame.cpp b/src/mac/frame.cpp
index 4d83421744..09544ddd4d 100644
--- a/src/mac/frame.cpp
+++ b/src/mac/frame.cpp
@@ -231,6 +231,12 @@ void wxFrame::OnActivate(wxActivateEvent& event)
 	    {
 	    	m_frameMenuBar->MacInstallMenuBar() ;
 	    }
+	    else if (wxTheApp->GetTopWindow() && wxTheApp->GetTopWindow()->IsKindOf(CLASSINFO(wxFrame)))
+        {
+            // Trying toplevel frame menbar
+            if( ((wxFrame*)wxTheApp->GetTopWindow())->GetMenuBar() )
+	            ((wxFrame*)wxTheApp->GetTopWindow())->GetMenuBar()->MacInstallMenuBar();
+ 	    }
 	}
 }