diff --git a/po/ja.po b/po/ja.po
index b7aec2fe7..fbaff6513 100644
--- a/po/ja.po
+++ b/po/ja.po
@@ -9,7 +9,7 @@ msgstr ""
 "Project-Id-Version: ja\n"
 "Report-Msgid-Bugs-To: Hiroki Taniura <boiled.sugar@gmail.com>\n"
 "POT-Creation-Date: 2009-02-27 00:38+0900\n"
-"PO-Revision-Date: 2011-11-20 17:25+0900\n"
+"PO-Revision-Date: 2011-11-21 06:43+0900\n"
 "Last-Translator: Hiroki Taniura <boiled.sugar@gmail.com>\n"
 "Language-Team: Japanese <boiled.sugar@gmail.com>\n"
 "Language: ja\n"
@@ -6310,7 +6310,7 @@ msgstr "選択されたNALUサイズ長'%1%'は小さすぎます。'4'を試し
 
 #: src/merge/mkvmerge.cpp:1559
 msgid "The closing parenthesis ')' are missing.\n"
-msgstr ""
+msgstr "閉じる括弧 ')' がありません。\n"
 
 #: src/merge/pr_generic.cpp:1208
 #, boost-format