1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py
index 5ea8a7b603..67888898ff 100644
--- a/synapse/handlers/federation.py
+++ b/synapse/handlers/federation.py
@@ -1790,7 +1790,7 @@ class FederationHandler(BaseHandler):
         room_id: str,
         user_id: str,
         membership: str,
-        content: JsonDict = {},
+        content: JsonDict,
         params: Optional[Dict[str, Union[str, Iterable[str]]]] = None,
     ) -> Tuple[str, EventBase, RoomVersion]:
         (