diff --git a/packages/nc-gui/lang/ja.json b/packages/nc-gui/lang/ja.json
index 5a2af71e51..dde51d9607 100644
--- a/packages/nc-gui/lang/ja.json
+++ b/packages/nc-gui/lang/ja.json
@@ -16,6 +16,7 @@
     "cancel": "キャンセル",
     "submit": "送信",
     "create": "作成",
+    "duplicate": "Duplicate",
     "insert": "挿入",
     "delete": "削除",
     "update": "更新",