diff --git a/packages/backend/src/server/api/endpoints/notes/children.ts b/packages/backend/src/server/api/endpoints/notes/children.ts
index e69ba9be7e..414d010f10 100644
--- a/packages/backend/src/server/api/endpoints/notes/children.ts
+++ b/packages/backend/src/server/api/endpoints/notes/children.ts
@@ -81,6 +81,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			this.queryService.generateVisibilityQuery(query, me);
 			if (me) {
 				this.queryService.generateBlockedUserQuery(query, me);
+				this.queryService.generateMutedUserQuery(query, me);
 			}
 
 			const notes = await query.limit(ps.limit).getMany();