1 files changed, 1 insertions, 1 deletions

diff --git a/lisp/emacs-lisp/regexp-opt.el b/lisp/emacs-lisp/regexp-opt.el
index 894cc4c4be7..06dea3c8433 100644
--- a/lisp/emacs-lisp/regexp-opt.el
+++ b/lisp/emacs-lisp/regexp-opt.el
@@ -122,7 +122,7 @@ in REGEXP."
                            regexp start)
         (setq count (1+ count)
               ;; Go back 2 chars (one for [^?] and one for [^\\]).
-              start (- (match-end 0) 2))
+              start (- (match-end 0) 2)))
       count)))
 
 ;;; Workhorse functions.