diff --git a/po/ja.po b/po/ja.po
index cc2ac57c28..dfabd3f24a 100644
--- a/po/ja.po
+++ b/po/ja.po
@@ -3427,7 +3427,7 @@ msgstr ""
 
 #: libraries/config/messages.inc.php:311
 msgid "mcrypt warning"
-msgstr ""
+msgstr "mcrypt 警告"
 
 #: libraries/config/messages.inc.php:312
 msgid ""