diff --git a/po/ja.po b/po/ja.po
index 67423e8b4..49e357566 100644
--- a/po/ja.po
+++ b/po/ja.po
@@ -2411,7 +2411,7 @@ msgstr "DROP クエリの確認"
 
 #: libraries/config/messages.inc.php:44
 msgid "Debug SQL"
-msgstr ""
+msgstr "SQL のデバッグ"
 
 #: libraries/config/messages.inc.php:45
 #, fuzzy