diff --git a/backend/src/decorators/decorator.ts b/backend/src/decorators/multipart.ts
similarity index 100%
rename from backend/src/decorators/decorator.ts
rename to backend/src/decorators/multipart.ts
diff --git a/backend/src/managers/auth/guards/admin.guard.ts b/backend/src/managers/auth/guards/admin.guard.ts
index 43c5f44..e5a5d18 100644
--- a/backend/src/managers/auth/guards/admin.guard.ts
+++ b/backend/src/managers/auth/guards/admin.guard.ts
@@ -1,6 +1,8 @@
 import {
   CanActivate,
-  ExecutionContext, Injectable, Logger
+  ExecutionContext,
+  Injectable,
+  Logger
 } from '@nestjs/common';
 import { plainToClass } from 'class-transformer';
 import { validate } from 'class-validator';
@@ -13,8 +15,12 @@ export class AdminGuard implements CanActivate {
   async canActivate(context: ExecutionContext): Promise<boolean> {
     const request = context.switchToHttp().getRequest();
 
+    if (!request.user) {
+      return false;
+    }
+
     const user = plainToClass(EUserBackend, request.user);
-    const errors = await validate(user, {forbidUnknownValues: true});
+    const errors = await validate(user, { forbidUnknownValues: true });
     if (errors.length > 0) {
       this.logger.warn(errors);
       return false;
diff --git a/backend/src/routes/api/pref/pref.module.ts b/backend/src/routes/api/pref/pref.module.ts
index bdd048a..b1a7f10 100644
--- a/backend/src/routes/api/pref/pref.module.ts
+++ b/backend/src/routes/api/pref/pref.module.ts
@@ -4,6 +4,6 @@ import { PrefController } from './pref.controller';
 
 @Module({
   imports: [SysPreferenceModule],
-  controllers: [PrefController]
+  controllers: [PrefController],
 })
 export class PrefModule {}
diff --git a/backend/src/routes/image/imageroute.controller.ts b/backend/src/routes/image/imageroute.controller.ts
index fcc4eb9..48a6985 100644
--- a/backend/src/routes/image/imageroute.controller.ts
+++ b/backend/src/routes/image/imageroute.controller.ts
@@ -12,9 +12,10 @@ import {
 import { isHash } from 'class-validator';
 import { FastifyReply, FastifyRequest } from 'fastify';
 import { HasFailed } from 'picsur-shared/dist/types';
-import { MultiPart } from '../../decorators/decorator';
+import { MultiPart } from '../../decorators/multipart';
 import { ImageManagerService } from '../../managers/imagemanager/imagemanager.service';
 import { ImageUploadDto } from '../../models/dto/imageroute.dto';
+
 @Controller('i')
 export class ImageController {
   constructor(private readonly imagesService: ImageManagerService) {}