diff --git a/cura/PrinterOutput/NetworkedPrinterOutputDevice.py b/cura/PrinterOutput/NetworkedPrinterOutputDevice.py
index dae24767db..0fc387a53f 100644
--- a/cura/PrinterOutput/NetworkedPrinterOutputDevice.py
+++ b/cura/PrinterOutput/NetworkedPrinterOutputDevice.py
@@ -290,7 +290,7 @@ class NetworkedPrinterOutputDevice(PrinterOutputDevice):
                           on_progress: Optional[Callable[[int, int], None]] = None) -> QNetworkReply:
         self._validateManager()
         request = self._createEmptyRequest(target, content_type=None)
-        multi_post_part = QHttpMultiPart(QHttpMultiPart.FormDataType)
+        multi_post_part = QHttpMultiPart(QHttpMultiPart.ContentType.FormDataType)
         for part in parts:
             multi_post_part.append(part)