1 files changed, 1 insertions, 0 deletions
diff --git a/synapse/rest/client/v1/room.py b/synapse/rest/client/v1/room.py
index 6fe1eddcce..d42717effd 100644
--- a/synapse/rest/client/v1/room.py
+++ b/synapse/rest/client/v1/room.py
@@ -693,6 +693,7 @@ class RoomMembershipRestServlet(TransactionRestServlet):
                 content["id_server"],
                 requester,
                 txn_id,
+                new_room=False,
             )
             return (200, {})
             return