diff --git a/site/plugins/admin/lang/ja_JP.json b/site/plugins/admin/lang/ja_JP.json
index fa6d42ab..82d45210 100644
--- a/site/plugins/admin/lang/ja_JP.json
+++ b/site/plugins/admin/lang/ja_JP.json
@@ -231,5 +231,6 @@
   "admin_active_theme": "Active Theme",
   "admin_get_more_themes": "Get More Themes",
   "admin_images": "Images",
-  "admin_data": "Data"
+  "admin_data": "Data",
+  "admin_slugify": "Slug"
 }