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-rw-r--r--lisp/gud.el2
1 files changed, 1 insertions, 1 deletions
diff --git a/lisp/gud.el b/lisp/gud.el
index 421bb15b337..4655dd37eac 100644
--- a/lisp/gud.el
+++ b/lisp/gud.el
@@ -47,7 +47,7 @@
"Prefix of all GUD commands valid in C buffers.")
(global-set-key (concat gud-key-prefix "\C-l") 'gud-refresh)
-(global-set-key "\C-x " 'gud-break) ;; backward compatibility hack
+(define-key ctl-x-map " " 'gud-break) ;; backward compatibility hack
;; ======================================================================
;; the overloading mechanism