diff --git a/packages/backend/test/unit/ApDeliverManagerService.ts b/packages/backend/test/unit/ApDeliverManagerService.ts
index 26cec66b63..e88602fcc6 100644
--- a/packages/backend/test/unit/ApDeliverManagerService.ts
+++ b/packages/backend/test/unit/ApDeliverManagerService.ts
@@ -57,6 +57,10 @@ describe('ApDeliverManagerService', () => {
 		const module: TestingModule = await Test.createTestingModule({
 			providers: [
 				ApDeliverManagerService,
+				{
+					provide: ApDeliverManagerService.name,
+					useExisting: ApDeliverManagerService,
+				},
 				{
 					provide: DI.followingsRepository,
 					useValue: {
@@ -89,6 +93,8 @@ describe('ApDeliverManagerService', () => {
 		followingsRepository = module.get(DI.followingsRepository);
 		queueService = module.get(QueueService);
 		apLoggerService = module.get(ApLoggerService);
+
+		await service.onModuleInit();
 	});
 
 	beforeEach(() => {