diff --git a/src/channels/channels.controller.ts b/src/channels/channels.controller.ts
index a58c45b..e005a3a 100644
--- a/src/channels/channels.controller.ts
+++ b/src/channels/channels.controller.ts
@@ -401,14 +401,15 @@ export class ChannelsController {
 	})
 	async rejectInvitation(
 		@GetUser() user: User,
-		@Param('channelinvitationId', ParseIntPipe, PositiveIntPipe)
+		@Param('channelInvitationId', ParseIntPipe, PositiveIntPipe)
 		invitationId: number,
 	) {
 		const deleteInvitationParamDto: DeleteChannelInvitationParamDto = {
 			cancelingUserId: user.id,
 			invitationId: invitationId,
 		};
-
-		await this.channelsService.rejectInvitation(deleteInvitationParamDto);
+		return await this.channelsService.rejectInvitation(
+			deleteInvitationParamDto,
+		);
 	}
 }
diff --git a/src/channels/channels.service.ts b/src/channels/channels.service.ts
index 24b6ef1..410e106 100644
--- a/src/channels/channels.service.ts
+++ b/src/channels/channels.service.ts
@@ -3,7 +3,11 @@ import { BadRequestException, Injectable, Logger } from '@nestjs/common';
 import * as bycrypt from 'bcrypt';
 import { Redis } from 'ioredis';
 import { MUTE_TIME } from 'src/common/constants';
-import { ChannelType, ChannelUserType } from 'src/common/enum';
+import {
+	ChannelEventType,
+	ChannelType,
+	ChannelUserType,
+} from 'src/common/enum';
 import { GatewayCreateChannelInvitationParamDto } from 'src/game/dto/gateway-create-channelInvitation-param-dto';
 import { User } from 'src/users/entities/user.entity';
 import { UsersRepository } from 'src/users/users.repository';
@@ -591,14 +595,24 @@ export class ChannelsService {
 	async acceptInvitation(
 		createChannelUserParamDto: ChannelInvitationParamDto,
 	): Promise<ChannelInvitationListResponseDto> {
+		const channelInvitationInfo =
+			await this.channelInvitationRepository.findOne({
+				where: {
+					id: createChannelUserParamDto.invitationId,
+				},
+			});
+		if (!channelInvitationInfo?.channelId || !channelInvitationInfo.id)
+			throw new BadRequestException(
+				`channel ${channelInvitationInfo?.id} does not exist`,
+			);
 		const channelInfo = await this.channelsRepository.findOne({
 			where: {
-				id: createChannelUserParamDto.invitationId,
+				id: channelInvitationInfo.channelId,
 			},
 		});
-		if (!channelInfo || !channelInfo.name)
+		if (!channelInfo?.id || !channelInfo.name)
 			throw new BadRequestException(
-				`channel ${createChannelUserParamDto.invitationId} does not exist`,
+				`channel ${channelInfo?.id} does not exist`,
 			);
 
 		const channelId = channelInfo.id;
diff --git a/src/channels/dto/channel-Invitation-list-response.dto.ts b/src/channels/dto/channel-Invitation-list-response.dto.ts
index e9e66a4..e60eca1 100644
--- a/src/channels/dto/channel-Invitation-list-response.dto.ts
+++ b/src/channels/dto/channel-Invitation-list-response.dto.ts
@@ -1,7 +1,7 @@
-import { ChannelInvitationListDto } from "./channel-Invitation-list-return.dto";
+import { ChannelInvitationListDto } from './channel-Invitation-list-return.dto';
 
 export type ChannelInvitationListResponseDto = {
-    channelId : number;
-    channelName : string;
-    channelUsers: ChannelInvitationListDto[];
-};
\ No newline at end of file
+	channelId: number;
+	channelName: string;
+	channelUsers: ChannelInvitationListDto[];
+};