diff --git a/backend/model/memory/PersonManager.ts b/backend/model/memory/PersonManager.ts
index b8c1265..4f5d924 100644
--- a/backend/model/memory/PersonManager.ts
+++ b/backend/model/memory/PersonManager.ts
@@ -1,6 +1,11 @@
 import {IPersonManager} from '../interfaces/IPersonManager';
+import {MediaDTO} from '../../../common/entities/MediaDTO';
 
 export class IndexingTaskManager implements IPersonManager {
+  keywordsToPerson(media: MediaDTO[]): Promise<void> {
+    throw new Error('Method not implemented.');
+  }
+
   get(name: string): Promise<any> {
     throw new Error('not supported by memory DB');
   }