diff --git a/lib/tfw/server/zmq_websocket_router.py b/lib/tfw/server/zmq_websocket_router.py
index cb19c33..b7adf16 100644
--- a/lib/tfw/server/zmq_websocket_router.py
+++ b/lib/tfw/server/zmq_websocket_router.py
@@ -9,10 +9,10 @@ LOG = logging.getLogger(__name__)
 
 
 class ZMQWebSocketRouter(WebSocketHandler):
-    # pylint: disable=abstract-method
+    # pylint: disable=abstract-method,attribute-defined-outside-init
     instances = set()
 
-    def initialize(self, **kwargs): # pylint: disable=arguments-differ
+    def initialize(self, **kwargs):
         self.event_handler_connector = kwargs['event_handler_connector']
         self.tfw_router = TFWRouter(self.send_to_zmq, self.send_to_websockets)