diff --git a/po/ja.po b/po/ja.po
index 0b0e25962..69ff65b6a 100644
--- a/po/ja.po
+++ b/po/ja.po
@@ -2982,7 +2982,7 @@ msgstr "Tables display options"
 
 #: libraries/config/messages.inc.php:182 setup/frames/menu.inc.php:19
 msgid "Main frame"
-msgstr ""
+msgstr "メインフレーム"
 
 #: libraries/config/messages.inc.php:183
 #, fuzzy