diff --git a/lisp/menu-bar.el b/lisp/menu-bar.el
index 4c0674debd4..efce55032c8 100644
--- a/lisp/menu-bar.el
+++ b/lisp/menu-bar.el
@@ -2240,7 +2240,8 @@ using `abort-recursive-edit'.
 
 This command must be bound to a mouse event, and can be reliably
 invoked only from the menu bar, otherwise it could decide to silently
-do nothing or signal an error."
+do nothing or signal an error.  Use `kill-current-buffer' if you
+need to invoke a similar command from keyboard."
   (interactive "e")
   ;; This colossus of a conditional is necessary to account for the wide
   ;; variety of this command's callers.