diff --git a/src/freebox_api/access.py b/src/freebox_api/access.py
index e23fad45..f75c4363 100644
--- a/src/freebox_api/access.py
+++ b/src/freebox_api/access.py
@@ -138,12 +138,15 @@ async def get(
         return await self._perform_request(self.session.get, end_url)
 
     async def post(
-        self, end_url: str, payload: Optional[Dict[str, Any]] = None
+        self, end_url: str, payload: Optional[Dict[str, Any]] = None, json_transform: bool = True
     ) -> Dict[str, Any]:
         """
         Send post request and return results
         """
-        data = json.dumps(payload) if payload else None
+        if json_transform:
+            data = json.dumps(payload) if payload else None
+        else:
+            data = payload if payload else None
         return await self._perform_request(self.session.post, end_url, data=data)  # type: ignore
 
     async def put(
diff --git a/src/freebox_api/api/download.py b/src/freebox_api/api/download.py
index 5609551c..682add4f 100644
--- a/src/freebox_api/api/download.py
+++ b/src/freebox_api/api/download.py
@@ -108,9 +108,9 @@ async def add_download_task_from_url(
         """
         Add download from url
 
-        download_url : `str`
+        download_url : `dict`
         """
-        return await self._access.post("downloads/add/", download_url)
+        return await self._access.post("downloads/add/", download_url, False)
 
     async def add_download_task_from_file(
         self, download_file: Dict[str, Any]