diff --git a/src/backend/model/database/memory/AlbumManager.ts b/src/backend/model/database/memory/AlbumManager.ts
index 1a934461..08907560 100644
--- a/src/backend/model/database/memory/AlbumManager.ts
+++ b/src/backend/model/database/memory/AlbumManager.ts
@@ -3,7 +3,11 @@ import {SearchQueryDTO} from '../../../../common/entities/SearchQueryDTO';
 import {IAlbumManager} from '../interfaces/IAlbumManager';
 
 export class AlbumManager implements IAlbumManager {
-  addIfNotExistSavedSearch(name: string, searchQuery: SearchQueryDTO, lockedAlbum?: boolean): Promise<void> {
+  public async onGalleryIndexUpdate(): Promise<void> {
+    throw new Error('not supported by memory DB');
+  }
+
+  public async addIfNotExistSavedSearch(name: string, searchQuery: SearchQueryDTO, lockedAlbum?: boolean): Promise<void> {
     throw new Error('not supported by memory DB');
   }