diff --git a/lisp/cus-start.el b/lisp/cus-start.el
index 0d4b9687487..1a5b3caea23 100644
--- a/lisp/cus-start.el
+++ b/lisp/cus-start.el
@@ -345,7 +345,7 @@ Leaving \"Default\" unchecked is equivalent with specifying a default of
 	     ;; keyboard.c
 	     (meta-prefix-char keyboard character)
 	     (auto-save-interval auto-save integer)
-             (auto-save-no-message auto-save boolean)
+             (auto-save-no-message auto-save boolean "27.1")
 	     (auto-save-timeout auto-save (choice (const :tag "off" nil)
 						  (integer :format "%v")))
 	     (echo-keystrokes minibuffer number)