diff --git a/locales/ko.yml b/locales/ko.yml
index 23dba18883..70274f36e8 100644
--- a/locales/ko.yml
+++ b/locales/ko.yml
@@ -928,7 +928,4 @@ docs:
     props:
       name: "名前"
       type: "型"
-      optional: "オプション"
       description: "説明"
-      yes: "はい"
-      no: "いいえ"