1 files changed, 2 insertions, 2 deletions

diff --git a/lisp/language/japan-util.el b/lisp/language/japan-util.el
index 5d6f5374071..6d87303ba12 100644
--- a/lisp/language/japan-util.el
+++ b/lisp/language/japan-util.el
@@ -29,11 +29,11 @@
 
 ;;;###autoload
 (defun setup-japanese-environment-internal ()
-  ;; By default, we use 'japanese-iso-8bit for file names.  But, the
+  ;; By default, we use 'iso-2022-jp for default coding system.  But, the
   ;; following prefer-coding-system will override it.
   (if (memq system-type '(windows-nt ms-dos cygwin))
       (prefer-coding-system 'japanese-shift-jis)
-    (prefer-coding-system 'japanese-iso-8bit))
+    (prefer-coding-system 'utf-8))
   (use-cjk-char-width-table 'ja_JP))
 
 (defconst japanese-kana-table