diff --git a/synapse/storage/schema/main/delta/93/01_add_deleted_room_memebers.sql b/synapse/storage/schema/main/delta/93/01_add_deleted_room_memebers.sql
new file mode 100644
index 0000000000..2130c638a4
--- /dev/null
+++ b/synapse/storage/schema/main/delta/93/01_add_deleted_room_memebers.sql
@@ -0,0 +1,19 @@
+--
+-- This file is licensed under the Affero General Public License (AGPL) version 3.
+--
+-- Copyright (C) 2025 New Vector, Ltd
+--
+-- This program is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU Affero General Public License as
+-- published by the Free Software Foundation, either version 3 of the
+-- License, or (at your option) any later version.
+--
+-- See the GNU Affero General Public License for more details:
+-- <https://www.gnu.org/licenses/agpl-3.0.html>.
+
+CREATE TABLE deleted_room_members (
+    room_id TEXT NOT NULL,
+    user_id TEXT NOT NULL,
+    deleted_at_stream_id bigint NOT NULL
+);
+CREATE UNIQUE INDEX deleted_room_member_idx ON deleted_room_members(room_id, user_id);