1 files changed, 2 insertions, 2 deletions

diff --git a/lisp/help.el b/lisp/help.el
index fa7f6b0d5b0..014af5141e3 100644
--- a/lisp/help.el
+++ b/lisp/help.el
@@ -1,6 +1,6 @@
 ;;; help.el --- help commands for Emacs
 
-;; Copyright (C) 1985-1986, 1993-1994, 1998-2017 Free Software
+;; Copyright (C) 1985-1986, 1993-1994, 1998-2018 Free Software
 ;; Foundation, Inc.
 
 ;; Maintainer: emacs-devel@gnu.org
@@ -876,7 +876,7 @@ temporarily enables it to allow getting help on disabled items and buttons."
         (when (vectorp key)
           (let* ((last (1- (length key)))
                  (elt (aref key last))
-                 (elt-1 (copy-sequence elt))
+                 (elt-1 (if (listp elt) (copy-sequence elt) elt))
                  key-1 down-event-type)
             (when (and (listp elt-1)
                        (symbolp (car elt-1))