diff --git a/lisp/emacs-lisp/re-builder.el b/lisp/emacs-lisp/re-builder.el
index 02b3658ac69..e3667cbc78e 100644
--- a/lisp/emacs-lisp/re-builder.el
+++ b/lisp/emacs-lisp/re-builder.el
@@ -235,7 +235,7 @@ Except for Lisp syntax this is the same as `reb-regexp'.")
         mode-name        "RE Builder")
   (use-local-map reb-mode-map)
   (reb-mode-common)
-  (run-hooks reb-mode-hook))
+  (run-hooks 'reb-mode-hook))
 
 (define-derived-mode reb-lisp-mode
   emacs-lisp-mode "RE Builder Lisp"