diff --git a/backend/src/album/album.module.ts b/backend/src/album/album.module.ts
index 2e60499..69a4cd3 100644
--- a/backend/src/album/album.module.ts
+++ b/backend/src/album/album.module.ts
@@ -3,6 +3,7 @@ import { TypeOrmModule } from '@nestjs/typeorm';
 import { Album } from './album.entity';
 import { AlbumController } from './album.controller';
 import { AlbumService } from './album.service';
+import { APP_PIPE } from '@nestjs/core';
 
 @Module({
   imports: [TypeOrmModule.forFeature([Album])],
diff --git a/backend/src/song/song.module.ts b/backend/src/song/song.module.ts
index 2f2bea5..4abfffa 100644
--- a/backend/src/song/song.module.ts
+++ b/backend/src/song/song.module.ts
@@ -4,6 +4,7 @@ import { Song } from './song.entity';
 import { AlbumModule } from '../album/album.module';
 import { SongController } from './song.controller';
 import { SongService } from './song.service';
+import { APP_PIPE } from '@nestjs/core';
 
 @Module({
   imports: [