diff --git a/packages/backend/test/unit/activitypub.ts b/packages/backend/test/unit/activitypub.ts
index 4ca1dcad0e..dbc446d12d 100644
--- a/packages/backend/test/unit/activitypub.ts
+++ b/packages/backend/test/unit/activitypub.ts
@@ -114,6 +114,7 @@ describe('ActivityPub', () => {
 				},
 			}).compile();
 
+		await app.init();
 		app.enableShutdownHooks();
 
 		noteService = app.get<ApNoteService>(ApNoteService);