1 files changed, 2 insertions, 3 deletions
diff --git a/synapse/handlers/room_member_worker.py b/synapse/handlers/room_member_worker.py
index 221552a2a6..ba261702d4 100644
--- a/synapse/handlers/room_member_worker.py
+++ b/synapse/handlers/room_member_worker.py
@@ -15,8 +15,7 @@
 import logging
 from typing import TYPE_CHECKING, List, Optional, Tuple
 
-from synapse.api.errors import SynapseError
-from synapse.handlers.room_member import RoomMemberHandler
+from synapse.handlers.room_member import NoKnownServersError, RoomMemberHandler
 from synapse.replication.http.membership import (
     ReplicationRemoteJoinRestServlet as ReplRemoteJoin,
     ReplicationRemoteKnockRestServlet as ReplRemoteKnock,
@@ -52,7 +51,7 @@ class RoomMemberWorkerHandler(RoomMemberHandler):
     ) -> Tuple[str, int]:
         """Implements RoomMemberHandler._remote_join"""
         if len(remote_room_hosts) == 0:
-            raise SynapseError(404, "No known servers")
+            raise NoKnownServersError()
 
         ret = await self._remote_join_client(
             requester=requester,