diff --git a/ko.json b/ko.json
index 4b0fd90fa0dbb01bc34b8df87ebb830cdd10c0d0..7e13f8fb6f67f291ee2fce0df24f2e339f7952ac 100644
--- a/ko.json
+++ b/ko.json
@@ -415,7 +415,8 @@
                 "login": "Revolt에 로그인",
                 "accept": "초대 수락",
                 "invited_by": "{{user}}님의 초대",
-                "user_count": "{{member_count}}명"
+                "user_count": "{{member_count}}명",
+                "invalid": "잘못된 초대장이에요!"
             },
             "modals": {
                 "actions": {