diff --git a/locales/ja-JP.yml b/locales/ja-JP.yml
index 579f6ce53..1f52c2c25 100644
--- a/locales/ja-JP.yml
+++ b/locales/ja-JP.yml
@@ -28,7 +28,6 @@ login: "ログイン"
 loggingIn: "ログイン中"
 logout: "ログアウト"
 signup: "新規登録"
-guest: "ゲスト"
 uploading: "アップロード中"
 save: "保存"
 users: "ユーザー"