diff --git a/src/backend/interfaces/WebsocketServerInterface.py b/src/backend/interfaces/WebsocketServerInterface.py
index 75a68c6..8ffcdc4 100644
--- a/src/backend/interfaces/WebsocketServerInterface.py
+++ b/src/backend/interfaces/WebsocketServerInterface.py
@@ -100,6 +100,11 @@ class WebsocketServerInterface(Interface):
             spawned_interface.parent_interface = self
             spawned_interface.online = True
 
+            # todo implement?
+            spawned_interface.announce_rate_target = None
+            spawned_interface.announce_rate_grace = None
+            spawned_interface.announce_rate_penalty = None
+
             # todo ifac?
             # todo announce rates?