1 files changed, 4 insertions, 1 deletions
diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py
index ed780bb41f..0235fd09b4 100644
--- a/synapse/handlers/room.py
+++ b/synapse/handlers/room.py
@@ -25,7 +25,9 @@ from collections import OrderedDict
 from typing import TYPE_CHECKING, Any, Awaitable, Dict, List, Optional, Tuple
 
 from synapse.api.constants import (
+    EventContentFields,
     EventTypes,
+    GuestAccess,
     HistoryVisibility,
     JoinRules,
     Membership,
@@ -993,7 +995,8 @@ class RoomCreationHandler(BaseHandler):
         if config["guest_can_join"]:
             if (EventTypes.GuestAccess, "") not in initial_state:
                 last_sent_stream_id = await send(
-                    etype=EventTypes.GuestAccess, content={"guest_access": "can_join"}
+                    etype=EventTypes.GuestAccess,
+                    content={EventContentFields.GUEST_ACCESS: GuestAccess.CAN_JOIN},
                 )
 
         for (etype, state_key), content in initial_state.items():