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-rw-r--r--lisp/emacs-lisp/find-func.el2
1 files changed, 1 insertions, 1 deletions
diff --git a/lisp/emacs-lisp/find-func.el b/lisp/emacs-lisp/find-func.el
index a37e64502dc..3ae98c08a39 100644
--- a/lisp/emacs-lisp/find-func.el
+++ b/lisp/emacs-lisp/find-func.el
@@ -352,7 +352,7 @@ See `find-variable' for more details."
Point is saved if FUNCTION is in the current buffer."
(interactive "kFind function on key: ")
(save-excursion
- (let* ((event (aref key 0))
+ (let* ((event (and (eventp key) (aref key 0))) ; Null event OK below.
(start (event-start event))
(modifiers (event-modifiers event))
(window (and (or (memq 'click modifiers) (memq 'down modifiers)