diff --git a/packages/backend/test/unit/activitypub.ts b/packages/backend/test/unit/activitypub.ts
index dbc446d12d..b2d3a42514 100644
--- a/packages/backend/test/unit/activitypub.ts
+++ b/packages/backend/test/unit/activitypub.ts
@@ -92,6 +92,7 @@ describe('ActivityPub', () => {
 	const metaInitial = {
 		cacheRemoteFiles: true,
 		cacheRemoteSensitiveFiles: true,
+		perUserHomeTimelineCacheMax: 100,
 		blockedHosts: [] as string[],
 		sensitiveWords: [] as string[],
 	} as MiMeta;