diff --git a/packages/backend/src/core/activitypub/models/ApNoteService.ts b/packages/backend/src/core/activitypub/models/ApNoteService.ts
index 32f71fa5a1..dc4396da0d 100644
--- a/packages/backend/src/core/activitypub/models/ApNoteService.ts
+++ b/packages/backend/src/core/activitypub/models/ApNoteService.ts
@@ -411,7 +411,7 @@ export class ApNoteService {
 		const object = await resolver.resolve(value);
 
 		const entryUri = getApId(value);
-		const err = this.validateNote(object, entryUri, actor, user, UpdatedNote);
+		const err = this.validateNote(object, entryUri, actor, user, updatedNote);
 		if (err) {
 			this.logger.error(err.message, {
 				resolver: { history: resolver.getHistory() },