diff --git a/xpfe/appshell/src/nsWebShellWindow.cpp b/xpfe/appshell/src/nsWebShellWindow.cpp
index d4748d1cf312..f1de34cbfa05 100644
--- a/xpfe/appshell/src/nsWebShellWindow.cpp
+++ b/xpfe/appshell/src/nsWebShellWindow.cpp
@@ -1710,6 +1710,7 @@ nsWebShellWindow::NotifyObservers( const nsString &aTopic, const nsString &someD
 NS_IMETHODIMP nsWebShellWindow::Destroy()
 {
 #ifdef USE_NATIVE_MENUS
+  {
   // unregister as document listener
   // this is needed for menus
    nsCOMPtr<nsIContentViewer> cv;
@@ -1723,6 +1724,7 @@ NS_IMETHODIMP nsWebShellWindow::Destroy()
       if(doc)
          doc->RemoveObserver(NS_STATIC_CAST(nsIDocumentObserver*, this));
       }
+   }
 #endif
    
    return nsXULWindow::Destroy();
diff --git a/xpfe/appshell/src/nsXULWindow.cpp b/xpfe/appshell/src/nsXULWindow.cpp
index 9d73a01ea15a..50a8bf9633e9 100644
--- a/xpfe/appshell/src/nsXULWindow.cpp
+++ b/xpfe/appshell/src/nsXULWindow.cpp
@@ -370,6 +370,7 @@ NS_IMETHODIMP nsXULWindow::Destroy()
       return NS_OK;
 
 #ifdef XP_MAC // Anyone still using native menus should add themselves here.
+  {
   // unregister as document listener
   // this is needed for menus
    nsCOMPtr<nsIContentViewer> cv;
@@ -383,6 +384,7 @@ NS_IMETHODIMP nsXULWindow::Destroy()
 /*      if(doc)
          doc->RemoveObserver(NS_STATIC_CAST(nsIDocumentObserver*, this));  */
       }
+   }
 #endif
 
    nsCOMPtr<nsIAppShellService> appShell(do_GetService(kAppShellServiceCID));