1 files changed, 1 insertions, 0 deletions
diff --git a/synapse/rest/client/v1/room.py b/synapse/rest/client/v1/room.py
index 012e7a44a6..5c10b33c55 100644
--- a/synapse/rest/client/v1/room.py
+++ b/synapse/rest/client/v1/room.py
@@ -675,6 +675,7 @@ class RoomMembershipRestServlet(TransactionRestServlet):
                 content["id_server"],
                 requester,
                 txn_id,
+                new_room=False,
             )
             return (200, {})
             return