diff --git a/CALCKEY.md b/CALCKEY.md
index 110aaf2644..75efeef069 100644
--- a/CALCKEY.md
+++ b/CALCKEY.md
@@ -154,3 +154,4 @@
 	- 923c93da1228458dd65be47483c198a1a9191bcf: use await for notes.countBy
 	- ca90cedba0a0704b503c2778694230f5a7dfbace: server: reduce dead instance detection to 7 days
 	- e9ab42c10afb4e27516c2d2b5e3e06630efe9edd: Alt text in image viewer
+	- 6d58d5ed3b2edcbd1296118201e3f0e2b42f8f52: Mute renotes
diff --git a/packages/backend/migration/1655793461890-thread-mute-notifications.js b/packages/backend/migration/1655793461890-thread-mute-notifications.js
index 89f340d5fa..59611b7e6d 100644
--- a/packages/backend/migration/1655793461890-thread-mute-notifications.js
+++ b/packages/backend/migration/1655793461890-thread-mute-notifications.js
@@ -2,12 +2,10 @@ export class threadMuteNotifications1655793461890 {
 	name = 'threadMuteNotifications1655793461890'
 
 	async up(queryRunner) {
-		await queryRunner.query(`CREATE TYPE "public"."note_thread_muting_mutingnotificationtypes_enum" AS ENUM('mention', 'reply', 'renote', 'quote', 'reaction', 'pollVote', 'pollEnded')`);
 		await queryRunner.query(`ALTER TABLE "note_thread_muting" ADD "mutingNotificationTypes" "public"."note_thread_muting_mutingnotificationtypes_enum" array NOT NULL DEFAULT '{}'`);
 	}
 
 	async down(queryRunner) {
 		await queryRunner.query(`ALTER TABLE "note_thread_muting" DROP COLUMN "mutingNotificationTypes"`);
-		await queryRunner.query(`DROP TYPE "public"."note_thread_muting_mutingnotificationtypes_enum"`);
 	}
 }