diff --git a/mailboxes/module.info b/mailboxes/module.info
index 514511732..562200346 100644
--- a/mailboxes/module.info
+++ b/mailboxes/module.info
@@ -16,3 +16,4 @@ desc_it=Posta degli utenti
 desc_cz=Práce s po¹tou u¾ivatelù
 desc_nl=Lees Gebruikers Mail
 desc_ja_JP.euc=¥æ¡¼¥¶ E ¥á¡¼¥ë¤òÆɤà
+desc_ja_JP.UTF-8=ユーザ E メールを読む