diff --git a/packages/backend/migration/1705222772858-optimize-note-index-for-array-column.js b/packages/backend/migration/1705222772858-optimize-note-index-for-array-column.js
index 571bd8e8f3..af71d5858c 100644
--- a/packages/backend/migration/1705222772858-optimize-note-index-for-array-column.js
+++ b/packages/backend/migration/1705222772858-optimize-note-index-for-array-column.js
@@ -7,18 +7,10 @@ export class OptimizeNoteIndexForArrayColumns1705222772858 {
     name = 'OptimizeNoteIndexForArrayColumns1705222772858'
 
     async up(queryRunner) {
-        await queryRunner.query(`DROP INDEX "public"."IDX_796a8c03959361f97dc2be1d5c"`);
-        await queryRunner.query(`DROP INDEX "public"."IDX_54ebcb6d27222913b908d56fd8"`);
-        await queryRunner.query(`DROP INDEX "public"."IDX_88937d94d7443d9a99a76fa5c0"`);
-        await queryRunner.query(`DROP INDEX "public"."IDX_51c063b6a133a9cb87145450f5"`);
-        await queryRunner.query(`CREATE INDEX "IDX_NOTE_FILE_IDS" ON "note" using gin ("fileIds")`)
+        await queryRunner.query(`CREATE INDEX "IDX_NOTE_FILE_IDS" ON "note" using gin ("fileIds")`);
     }
 
     async down(queryRunner) {
-        await queryRunner.query(`DROP INDEX "IDX_NOTE_FILE_IDS"`)
-        await queryRunner.query(`CREATE INDEX "IDX_51c063b6a133a9cb87145450f5" ON "note" ("fileIds") `);
-        await queryRunner.query(`CREATE INDEX "IDX_88937d94d7443d9a99a76fa5c0" ON "note" ("tags") `);
-        await queryRunner.query(`CREATE INDEX "IDX_54ebcb6d27222913b908d56fd8" ON "note" ("mentions") `);
-        await queryRunner.query(`CREATE INDEX "IDX_796a8c03959361f97dc2be1d5c" ON "note" ("visibleUserIds") `);
+        await queryRunner.query(`DROP INDEX "IDX_NOTE_FILE_IDS"`);
     }
 }
diff --git a/packages/backend/src/models/Note.ts b/packages/backend/src/models/Note.ts
index 27439282bc..856959cfc1 100644
--- a/packages/backend/src/models/Note.ts
+++ b/packages/backend/src/models/Note.ts
@@ -11,6 +11,10 @@ import { MiChannel } from './Channel.js';
 import type { MiDriveFile } from './DriveFile.js';
 
 @Entity('note')
+@Index('IDX_NOTE_TAGS', { synchronize: false })
+@Index('IDX_NOTE_MENTIONS', { synchronize: false })
+@Index('IDX_NOTE_FILE_IDS', { synchronize: false })
+@Index('IDX_NOTE_VISIBLE_USER_IDS', { synchronize: false })
 export class MiNote {
 	@PrimaryColumn(id())
 	public id: string;
@@ -137,7 +141,7 @@ export class MiNote {
 	})
 	public url: string | null;
 
-	@Index('IDX_NOTE_FILE_IDS', { synchronize: false })
+	@Index()
 	@Column({
 		...id(),
 		array: true, default: '{}',
@@ -149,14 +153,14 @@ export class MiNote {
 	})
 	public attachedFileTypes: string[];
 
-	@Index('IDX_NOTE_VISIBLE_USER_IDS', { synchronize: false })
+	@Index()
 	@Column({
 		...id(),
 		array: true, default: '{}',
 	})
 	public visibleUserIds: MiUser['id'][];
 
-	@Index('IDX_NOTE_MENTIONS', { synchronize: false })
+	@Index()
 	@Column({
 		...id(),
 		array: true, default: '{}',
@@ -178,7 +182,7 @@ export class MiNote {
 	})
 	public emojis: string[];
 
-	@Index('IDX_NOTE_TAGS', { synchronize: false })
+	@Index()
 	@Column('varchar', {
 		length: 128, array: true, default: '{}',
 	})