diff --git a/modoboa/locale/ja_JP/LC_MESSAGES/django.po b/modoboa/locale/ja_JP/LC_MESSAGES/django.po
index 30510a18f..92615d348 100644
--- a/modoboa/locale/ja_JP/LC_MESSAGES/django.po
+++ b/modoboa/locale/ja_JP/LC_MESSAGES/django.po
@@ -1424,7 +1424,7 @@ msgstr "ID"
 
 #: admin/templates/admin/mx_domain_detail.html:11
 msgid "Updated"
-msgstr "更新済み"
+msgstr "更新しました"
 
 #: admin/templates/admin/mx_domain_detail.html:23
 msgid "This IP does not match any of the valid MXs defined in parameters"