diff --git a/src/service/friendService.ts b/src/service/friendService.ts
index 51917ab..2d15b6b 100644
--- a/src/service/friendService.ts
+++ b/src/service/friendService.ts
@@ -46,7 +46,7 @@ const recommendBookToFriend = async (
     },
   });
 
-  //? 친구 없는 경우
+  //* 친구 없는 경우
   if (friendData == null) {
     return sc.NOT_FOUND;
   }