diff --git a/fleetspeak_python/fleetspeak/server_connector/connector.py b/fleetspeak_python/fleetspeak/server_connector/connector.py
index f18d1f56..e3711874 100644
--- a/fleetspeak_python/fleetspeak/server_connector/connector.py
+++ b/fleetspeak_python/fleetspeak/server_connector/connector.py
@@ -414,7 +414,7 @@ def __init__(
           If both fleetspeak_message_listen_address and fleetspeak_server are
           unset.
     """
-    super(InsecureGRPCServiceClient, self).__init__(service_name)
+    super(InsecureGRPCServiceClient, self).__init__(service_name)  # pyrefly: ignore[missing-attribute]
 
     if fleetspeak_message_listen_address is None:
       fleetspeak_message_listen_address = (