diff --git a/src/room/dto/chat.dto.ts b/src/room/dto/chat.dto.ts
index ba3fb4c..d19f1c8 100644
--- a/src/room/dto/chat.dto.ts
+++ b/src/room/dto/chat.dto.ts
@@ -1,5 +1,4 @@
 import { ApiProperty, PickType } from '@nestjs/swagger';
-import { RoomDto } from './room.dto';
 import { User } from '../../user/schema/user.schema';
 import { Chat, Message } from '../../chat/schema/chat.schema';
 import * as moment from 'moment-timezone';
@@ -7,8 +6,8 @@ import * as moment from 'moment-timezone';
 export class ChatDto {
   @ApiProperty()
   id: string;
-  @ApiProperty({ type: () => PickType(RoomDto, ['id'] as const) })
-  room: Pick<RoomDto, 'id'>;
+  @ApiProperty()
+  room: { id: string };
   @ApiProperty({ type: () => PickType(User, ['id'] as const) })
   sender: Pick<User, 'id'>;
   @ApiProperty({ type: () => Message })
diff --git a/src/room/room.service.ts b/src/room/room.service.ts
index cf0dc65..d40e1c9 100644
--- a/src/room/room.service.ts
+++ b/src/room/room.service.ts
@@ -116,12 +116,11 @@ export class RoomService {
       { _id: room._id },
       { $set: { lastChat: createdChat } },
     );
-    console.log(createdChat);
-    console.log(chat.roomId);
+    const result = new ChatDto(createdChat);
     this.detailGateway.io.server
       .of(`/chat-rooms/${chat.roomId}`)
       .to(chat.roomId)
-      .emit('chat-append', new ChatDto(createdChat));
+      .emit('chat-append', result);
     const sockets = await this.detailGateway.io.server
       .of(`/chat-rooms/${chat.roomId}`)
       .in(chat.roomId)
@@ -134,7 +133,7 @@ export class RoomService {
     this.roomGateway.io.server
       .of('/chat-rooms')
       .to(users.map((user) => user.id))
-      .emit('last-chat-append', new ChatDto(createdChat));
+      .emit('last-chat-append', result);
     return createdChat;
   }