diff --git a/homeassistant/components/zwave_js/api.py b/homeassistant/components/zwave_js/api.py
index b41c6bf2f92..75180cfa84f 100644
--- a/homeassistant/components/zwave_js/api.py
+++ b/homeassistant/components/zwave_js/api.py
@@ -4,7 +4,7 @@ from __future__ import annotations
 from collections.abc import Callable
 import dataclasses
 from functools import partial, wraps
-from typing import Any, Literal
+from typing import Any, Literal, cast
 
 from aiohttp import web, web_exceptions, web_request
 import voluptuous as vol
@@ -1976,6 +1976,10 @@ class FirmwareUploadView(HomeAssistantView):
         if "file" not in data or not isinstance(data["file"], web_request.FileField):
             raise web_exceptions.HTTPBadRequest
 
+        target = None
+        if "target" in data:
+            target = int(cast(str, data["target"]))
+
         uploaded_file: web_request.FileField = data["file"]
 
         try:
@@ -1985,6 +1989,7 @@ class FirmwareUploadView(HomeAssistantView):
                 uploaded_file.filename,
                 await hass.async_add_executor_job(uploaded_file.file.read),
                 async_get_clientsession(hass),
+                target=target,
             )
         except BaseZwaveJSServerError as err:
             raise web_exceptions.HTTPBadRequest(reason=str(err)) from err
diff --git a/tests/components/zwave_js/test_api.py b/tests/components/zwave_js/test_api.py
index f303db6af75..149fe394a6d 100644
--- a/tests/components/zwave_js/test_api.py
+++ b/tests/components/zwave_js/test_api.py
@@ -2847,9 +2847,10 @@ async def test_firmware_upload_view(
     ) as mock_cmd:
         resp = await client.post(
             f"/api/zwave_js/firmware/upload/{device.id}",
-            data={"file": firmware_file},
+            data={"file": firmware_file, "target": "15"},
         )
         assert mock_cmd.call_args[0][1:4] == (multisensor_6, "file", bytes(10))
+        assert mock_cmd.call_args[1] == {"target": 15}
         assert json.loads(await resp.text()) is None