diff --git a/po/ja.po b/po/ja.po
index 41976d59a6..c19429159a 100644
--- a/po/ja.po
+++ b/po/ja.po
@@ -1772,7 +1772,7 @@ msgstr "テーマ %s のテーマパスが見つかりません!"
 
 #: libraries/Theme_Manager.class.php:291 themes.php:20 themes.php:40
 msgid "Theme"
-msgstr ""
+msgstr "テーマ"
 
 #: libraries/auth/config.auth.lib.php:76
 msgid "Cannot connect: invalid settings."