diff --git a/lisp/international/kkc.el b/lisp/international/kkc.el
index a9da69c78342..ab00b03f2fc9 100644
--- a/lisp/international/kkc.el
+++ b/lisp/international/kkc.el
@@ -71,9 +71,6 @@ This string is shown at mode line when users are in KKC mode.")
 (defvar kkc-mode-map
   (let ((map (make-keymap))
 	(i 0))
-    (while (< i ? )
-      (define-key map (char-to-string i) 'undefined)
-      (setq i (1+ i)))
     (while (< i 128)
       (define-key map (char-to-string i) 'kkc-non-kkc-command)
       (setq i (1+ i)))