diff --git a/src/locales/strings/ja.json b/src/locales/strings/ja.json
index 5376f930ef4..91462322437 100644
--- a/src/locales/strings/ja.json
+++ b/src/locales/strings/ja.json
@@ -1,5 +1,4 @@
 {
-  "aaa": "Test string",
   "action_queue_display_unknown_title": "Unknown actions",
   "action_queue_display_unknown_message": "Edgeは実行中のアクションの種類を識別できません。",
   "aciton_queue_display_close_title": "ローンを閉じる",