diff --git a/po/ja.po b/po/ja.po
index 9b11154f92..c286b5d40e 100644
--- a/po/ja.po
+++ b/po/ja.po
@@ -737,7 +737,7 @@ msgstr "作成日時"
 
 #: db_tracking.php:88 tbl_tracking.php:589
 msgid "Updated"
-msgstr ""
+msgstr "更新日時"
 
 #: db_tracking.php:89 libraries/common.lib.php:1354
 #: libraries/server_links.inc.php:50 server_processlist.php:71