diff --git a/po/ja.po b/po/ja.po
index 57c7a6968..e0163d0f9 100644
--- a/po/ja.po
+++ b/po/ja.po
@@ -2383,7 +2383,7 @@ msgstr ""
 
 #: libraries/config/messages.inc.php:40
 msgid "Compress on the fly"
-msgstr ""
+msgstr "逐次圧縮"
 
 #: libraries/config/messages.inc.php:41 setup/frames/config.inc.php:25
 #: setup/frames/index.inc.php:153