diff --git a/synapse/handlers/room_list.py b/synapse/handlers/room_list.py
index ea63fb604c..a99b6e1460 100644
--- a/synapse/handlers/room_list.py
+++ b/synapse/handlers/room_list.py
@@ -80,7 +80,8 @@ class RoomListHandler(BaseHandler):
             # solution at some point
             timeout = datetime.now() + timedelta(seconds=60)
             return self._get_public_room_list(
-                limit, since_token, search_filter, network_tuple=network_tuple, timeout=timeout,
+                limit, since_token, search_filter,
+                network_tuple=network_tuple, timeout=timeout,
             )
 
         key = (limit, since_token, network_tuple)