diff --git a/po/ja.po b/po/ja.po
index 50f8cd3be..de5d0c6cc 100644
--- a/po/ja.po
+++ b/po/ja.po
@@ -4,7 +4,7 @@ msgstr ""
 "Project-Id-Version: phpMyAdmin 3.4.0-rc1-dev\n"
 "Report-Msgid-Bugs-To: phpmyadmin-devel@lists.sourceforge.net\n"
 "POT-Creation-Date: 2011-04-15 08:56+0200\n"
-"PO-Revision-Date: 2011-04-19 11:45+0200\n"
+"PO-Revision-Date: 2011-04-19 11:46+0200\n"
 "Last-Translator: Yuichiro <yuichiro@pop07.odn.ne.jp>\n"
 "Language-Team: japanese <jp@li.org>\n"
 "Language: ja\n"
@@ -978,7 +978,7 @@ msgstr "データの挿入、置換を許可する"
 
 #: js/messages.php:36
 msgid "Dropping Primary Key/Index"
-msgstr ""
+msgstr "主キー/インデックスの削除中"
 
 #: js/messages.php:37
 msgid "This operation could take a long time. Proceed anyway?"