diff --git a/cura/PrinterOutput/NetworkedPrinterOutputDevice.py b/cura/PrinterOutput/NetworkedPrinterOutputDevice.py
index 47a6caf3e5..bbeb87d5e3 100644
--- a/cura/PrinterOutput/NetworkedPrinterOutputDevice.py
+++ b/cura/PrinterOutput/NetworkedPrinterOutputDevice.py
@@ -199,7 +199,7 @@ class NetworkedPrinterOutputDevice(PrinterOutputDevice):
     #  \param content_type: The content type of the body data.
     #  \param on_finished: The function to call when the response is received.
     #  \param on_progress: The function to call when the progress changes. Parameters are bytes_sent / bytes_total.
-    def put(self, url: str, data: Union[str, bytes], content_type: Optional[str] = None,
+    def put(self, url: str, data: Union[str, bytes], content_type: Optional[str] = "application/json",
             on_finished: Optional[Callable[[QNetworkReply], None]] = None,
             on_progress: Optional[Callable[[int, int], None]] = None) -> None:
         self._validateManager()
diff --git a/plugins/UM3NetworkPrinting/src/ClusterUM3OutputDevice.py b/plugins/UM3NetworkPrinting/src/ClusterUM3OutputDevice.py
index e2215c85e7..052dd0b979 100644
--- a/plugins/UM3NetworkPrinting/src/ClusterUM3OutputDevice.py
+++ b/plugins/UM3NetworkPrinting/src/ClusterUM3OutputDevice.py
@@ -355,8 +355,8 @@ class ClusterUM3OutputDevice(NetworkedPrinterOutputDevice):
     def sendJobToTop(self, print_job_uuid: str) -> None:
         # This function is part of the output device (and not of the printjob output model) as this type of operation
         # is a modification of the cluster queue and not of the actual job.
-        data = "{\"list\": \"queued\",\"to_position\": 0}"
-        self.post("print_jobs/{uuid}/action/move".format(uuid = print_job_uuid), data, on_finished=None)
+        data = "{\"to_position\": 0}"
+        self.put("print_jobs/{uuid}/move_to_position".format(uuid = print_job_uuid), data, on_finished=None)
 
     @pyqtSlot(str)
     def deleteJobFromQueue(self, print_job_uuid: str) -> None: