diff --git a/tfw/internals/networking/test_networking.py b/tfw/internals/networking/test_networking.py
index d1d4261..deb86c5 100644
--- a/tfw/internals/networking/test_networking.py
+++ b/tfw/internals/networking/test_networking.py
@@ -8,7 +8,7 @@ from contextlib import suppress
 import pytest
 from tornado.ioloop import IOLoop
 
-from tfw.internals.networking import ZMQListener, ZMQConnector
+from tfw.internals.networking import ZMQListener, ZMQConnector, Scope, Intent
 
 
 @pytest.fixture
@@ -96,6 +96,67 @@ def test_server_downlink(zmq_listener, zmq_connector, test_messages):
     assert messages == test_messages
 
 
+def test_connector_default_scope_is_zmq(zmq_listener, zmq_connector):
+    messages = []
+    zmq_listener.register_callback(messages.append)
+
+    zmq_connector.send_message({'key': 'cica'})
+
+    run_ioloop_once()
+
+    assert messages[0]['scope'] == Scope.ZMQ.value
+
+
+def test_connector_preserves_scope(zmq_listener, zmq_connector):
+    messages = []
+    zmq_listener.register_callback(messages.append)
+
+    zmq_connector.send_message({'key': 'cica', 'scope': Scope.WEBSOCKET.value})
+
+    run_ioloop_once()
+
+    assert messages[0]['scope'] == Scope.WEBSOCKET.value
+
+
+def test_connector_scope_overrides_message_scope(zmq_listener, zmq_connector):
+    messages = []
+    zmq_listener.register_callback(messages.append)
+
+    zmq_connector.send_message(
+        {'key': 'cica', 'scope': Scope.WEBSOCKET.value},
+        scope=Scope.ZMQ
+    )
+
+    run_ioloop_once()
+
+    assert messages[0]['scope'] == Scope.ZMQ.value
+
+
+def test_connector_adds_intent(zmq_listener, zmq_connector):
+    messages = []
+    zmq_listener.register_callback(messages.append)
+
+    zmq_connector.send_message(
+        {'key': 'cica'},
+        intent=Intent.EVENT
+    )
+
+    run_ioloop_once()
+
+    assert messages[0]['intent'] == Intent.EVENT.value
+
+
+def test_connector_preserves_intent(zmq_listener, zmq_connector):
+    messages = []
+    zmq_listener.register_callback(messages.append)
+
+    zmq_connector.send_message({'key': 'cica', 'intent': Intent.EVENT.value})
+
+    run_ioloop_once()
+
+    assert messages[0]['intent'] == Intent.EVENT.value
+
+
 def test_server_uplink(zmq_listener, zmq_connector, test_messages):
     messages = []
     zmq_connector.subscribe('')
diff --git a/tfw/internals/networking/zmq_connector.py b/tfw/internals/networking/zmq_connector.py
index ff82758..cd1111e 100644
--- a/tfw/internals/networking/zmq_connector.py
+++ b/tfw/internals/networking/zmq_connector.py
@@ -4,7 +4,6 @@ import zmq
 from zmq.eventloop.zmqstream import ZMQStream
 
 from .scope import Scope
-from .intent import Intent
 from .serialization import (
     serialize_tfw_msg,
     deserialize_tfw_msg,
@@ -52,8 +51,11 @@ class ZMQUplinkConnector:
         self._zmq_push_socket.setsockopt(zmq.SNDHWM, 0)
         self._zmq_push_socket.connect(connect_addr)
 
-    def send_message(self, message, scope=Scope.ZMQ, intent=None):
-        message['scope'] = scope.value
+    def send_message(self, message, scope=None, intent=None):
+        if 'scope' not in message:
+            message['scope'] = Scope.ZMQ.value
+        if scope is not None:
+            message['scope'] = scope.value
         if intent is not None:
             message['intent'] = intent.value
         self._zmq_push_socket.send_multipart(serialize_tfw_msg(message))