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-rw-r--r--lisp/hexl.el2
1 files changed, 1 insertions, 1 deletions
diff --git a/lisp/hexl.el b/lisp/hexl.el
index 130a2573a14..f45540c599d 100644
--- a/lisp/hexl.el
+++ b/lisp/hexl.el
@@ -614,7 +614,7 @@ You may also type up to 3 octal digits, to insert a character with that code"
(define-key hexl-mode-map "\C-f" 'hexl-forward-char)
(if (not (eq (key-binding (char-to-string help-char)) 'help-command))
- (define-key hexl-mode-map help-char 'undefined))
+ (define-key hexl-mode-map (char-to-string help-char) 'undefined))
(define-key hexl-mode-map "\C-i" 'hexl-self-insert-command)
(define-key hexl-mode-map "\C-j" 'hexl-self-insert-command)