1 files changed, 5 insertions, 1 deletions
diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py
index 559e3399b8..ab07edd2fc 100644
--- a/synapse/handlers/room.py
+++ b/synapse/handlers/room.py
@@ -579,9 +579,13 @@ class RoomCreationHandler(BaseHandler):
 
         # Check whether the third party rules allows/changes the room create
         # request.
-        yield self.third_party_event_rules.on_create_room(
+        event_allowed = yield self.third_party_event_rules.on_create_room(
             requester, config, is_requester_admin=is_requester_admin
         )
+        if not event_allowed:
+            raise SynapseError(
+                403, "You are not permitted to create rooms", Codes.FORBIDDEN
+            )
 
         if not is_requester_admin and not self.spam_checker.user_may_create_room(
             user_id