diff --git a/src/pydase/client/client.py b/src/pydase/client/client.py
index fdb4df9..2c963d8 100644
--- a/src/pydase/client/client.py
+++ b/src/pydase/client/client.py
@@ -84,6 +84,7 @@ class Client:
         url: str,
         block_until_connected: bool = True,
         sio_client_kwargs: dict[str, Any] = {},
+        client_id: str = "pydase_client",
     ):
         # Parse the URL to separate base URL and path prefix
         parsed_url = urllib.parse.urlparse(url)
@@ -98,6 +99,7 @@ class Client:
         self._url = url
         self._sio = socketio.AsyncClient(**sio_client_kwargs)
         self._loop = asyncio.new_event_loop()
+        self._client_id = client_id
         self.proxy = ProxyClass(
             sio_client=self._sio, loop=self._loop, reconnect=self.connect
         )
@@ -137,7 +139,10 @@ class Client:
         logger.debug("Connecting to server '%s' ...", self._url)
         await self._setup_events()
         await self._sio.connect(
-            self._base_url,
+            url=self._base_url,
+            headers={
+                "X-Client-Id": self._client_id,
+            },
             socketio_path=f"{self._path_prefix}/ws/socket.io",
             transports=["websocket"],
             retry=True,
diff --git a/tests/client/test_client.py b/tests/client/test_client.py
index 40e7a80..970a93f 100644
--- a/tests/client/test_client.py
+++ b/tests/client/test_client.py
@@ -161,3 +161,15 @@ def test_context_manager(pydase_client: pydase.Client) -> None:
         assert client.proxy.my_property == 1337.01
 
     assert not client.proxy.connected
+
+
+def test_client_id(
+    pydase_client: pydase.Client, caplog: pytest.LogCaptureFixture
+) -> None:
+    pydase.Client(url="ws://localhost:9999")
+
+    assert "Client [id=pydase_client] connected" in caplog.text
+    caplog.clear()
+
+    pydase.Client(url="ws://localhost:9999", client_id="my_service")
+    assert "Client [id=my_service] connected" in caplog.text