diff --git a/lib/client/keyBinding.js b/lib/client/keyBinding.js
index eb6d10e7..da140a63 100644
--- a/lib/client/keyBinding.js
+++ b/lib/client/keyBinding.js
@@ -110,7 +110,8 @@ CloudCommander.keyBinding = (function(){
                  }
                  else  if(event.keyCode === CloudCommander.KEY.F10 &&
                         event.shiftKey){
-                            CloudCommander.Menu();
+                            if (typeof CloudCommander.Menu === 'function')
+                                CloudCommander.Menu();
                         
                             event.preventDefault();//запрет на дальнейшее действие
                 }