diff --git a/packages/backend/migration/1749097536193-fix-IDX_note_for_timeline.js b/packages/backend/migration/1749097536193-fix-IDX_note_for_timeline.js
new file mode 100644
index 0000000000..9a651e5871
--- /dev/null
+++ b/packages/backend/migration/1749097536193-fix-IDX_note_for_timeline.js
@@ -0,0 +1,28 @@
+/*
+ * SPDX-FileCopyrightText: hazelnoot and other Sharkey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+export class FixIDXNoteForTimeline1749097536193 {
+	async up(queryRunner) {
+		await queryRunner.query('drop index "IDX_note_for_timelines"');
+		await queryRunner.query(`
+			create index "IDX_note_for_timelines"
+			on "note" ("id" desc, "channelId", "visibility", "userHost")
+			include ("userId", "replyId", "replyUserId", "replyUserHost", "renoteId", "renoteUserId", "renoteUserHost", "threadId")
+			NULLS NOT DISTINCT
+		`);
+		await queryRunner.query(`comment on index "IDX_note_for_timelines" is 'Covering index for timeline queries'`);
+	}
+
+	async down(queryRunner) {
+		await queryRunner.query('drop index "IDX_note_for_timelines"');
+		await queryRunner.query(`
+			create index "IDX_note_for_timelines"
+			on "note" ("id" desc, "channelId", "visibility", "userHost")
+			include ("userId", "userHost", "replyId", "replyUserId", "replyUserHost", "renoteId", "renoteUserId", "renoteUserHost")
+			NULLS NOT DISTINCT
+		`);
+		await queryRunner.query(`comment on index "IDX_note_for_timelines" is 'Covering index for timeline queries'`);
+	}
+}