1 files changed, 3 insertions, 0 deletions
diff --git a/synapse/api/constants.py b/synapse/api/constants.py
index 5f0f34119b..236f0c7f99 100644
--- a/synapse/api/constants.py
+++ b/synapse/api/constants.py
@@ -198,6 +198,9 @@ class EventContentFields:
     # cf https://github.com/matrix-org/matrix-doc/pull/1772
     ROOM_TYPE = "type"
 
+    # Whether a room can federate.
+    FEDERATE = "m.federate"
+
     # The creator of the room, as used in `m.room.create` events.
     ROOM_CREATOR = "creator"