diff --git a/packages/backend/src/core/IdService.ts b/packages/backend/src/core/IdService.ts
index 8aa6ccfc4..60098bc81 100644
--- a/packages/backend/src/core/IdService.ts
+++ b/packages/backend/src/core/IdService.ts
@@ -5,7 +5,7 @@ import type { Config } from '@/config.js';
 import { genAid, parseAid } from '@/misc/id/aid.js';
 import { genMeid, parseMeid } from '@/misc/id/meid.js';
 import { genMeidg, parseMeidg } from '@/misc/id/meidg.js';
-import { genObjectId } from '@/misc/id/object-id.js';
+import { genObjectId, parseObjectId } from '@/misc/id/object-id.js';
 import { bindThis } from '@/decorators.js';
 import { parseUlid } from '@/misc/id/ulid.js';
 
@@ -38,7 +38,7 @@ export class IdService {
 	public parse(id: string): { date: Date; } {
 		switch (this.method) {
 			case 'aid': return parseAid(id);
-			case 'objectid':
+			case 'objectid': return parseObjectId(id);
 			case 'meid': return parseMeid(id);
 			case 'meidg': return parseMeidg(id);
 			case 'ulid': return parseUlid(id);