diff --git a/lisp/completion.el b/lisp/completion.el
index 77761d695bf58604d9a2a3ec9d6f53e98f924f38..ca4de0afee0dd1ef852721da5db22aecab017f0c 100644
--- a/lisp/completion.el
+++ b/lisp/completion.el
@@ -2138,7 +2138,7 @@ Also sets up so that exiting Emacs will automatically save the file."
   "Kill between point and mark.
 The text is deleted but saved in the kill ring.
 The command \\[yank] can retrieve it from there.
-/(If you want to kill and then yank immediately, use \\[copy-region-as-kill].)
+\(If you want to kill and then yank immediately, use \\[copy-region-as-kill].)
 
 This is the primitive for programs to kill text (as opposed to deleting it).
 Supply two arguments, character positions indicating the stretch of text