diff --git a/frontend/lang/messages/ja-JP.json b/frontend/lang/messages/ja-JP.json
index 5f5d63e390db..0f5743dc257c 100644
--- a/frontend/lang/messages/ja-JP.json
+++ b/frontend/lang/messages/ja-JP.json
@@ -114,6 +114,7 @@
     "json": "JSON",
     "keyword": "キーワード",
     "link-copied": "リンクをコピーしました。",
+    "loading": "Loading",
     "loading-events": "Loading Events",
     "loading-recipe": "Loading recipe...",
     "loading-ocr-data": "Loading OCR data...",