diff --git a/lib/tfw/networking/event_handlers/server_connector.py b/lib/tfw/networking/event_handlers/server_connector.py
index 4c2a2b9..ab9973b 100644
--- a/lib/tfw/networking/event_handlers/server_connector.py
+++ b/lib/tfw/networking/event_handlers/server_connector.py
@@ -19,7 +19,7 @@ class ServerDownlinkConnector(ZMQConnectorBase):
         super(ServerDownlinkConnector, self).__init__(zmq_context)
         self._zmq_sub_socket = self._zmq_context.socket(zmq.SUB)
         self._zmq_sub_socket.connect(f'tcp://localhost:{TFWENV.PUBLISHER_PORT}')
-        self._zmq_sub_socket.setsockopt(zmq.RCVHWM,0)
+        self._zmq_sub_socket.setsockopt(zmq.RCVHWM, 0)
         self._zmq_sub_stream = ZMQStream(self._zmq_sub_socket)
 
         self.subscribe = partial(self._zmq_sub_socket.setsockopt_string, zmq.SUBSCRIBE)
@@ -41,7 +41,7 @@ class ServerUplinkConnector(ZMQConnectorBase):
         super(ServerUplinkConnector, self).__init__(zmq_context)
         self._zmq_push_socket = self._zmq_context.socket(zmq.PUSH)
         self._zmq_push_socket.connect(f'tcp://localhost:{TFWENV.RECEIVER_PORT}')
-        self._zmq_push_socket.setsockopt(zmq.SNDHWM,0)
+        self._zmq_push_socket.setsockopt(zmq.SNDHWM, 0)
 
     def send_to_eventhandler(self, message):
         """