diff --git a/plugins/USBPrinting/USBPrinterOutputDeviceManager.py b/plugins/USBPrinting/USBPrinterOutputDeviceManager.py
index 02e3cc137d..2e9fa52a73 100644
--- a/plugins/USBPrinting/USBPrinterOutputDeviceManager.py
+++ b/plugins/USBPrinting/USBPrinterOutputDeviceManager.py
@@ -83,7 +83,7 @@ class USBPrinterOutputDeviceManager(QObject, OutputDevicePlugin):
             if container_stack.getMetaDataEntry("supports_usb_connection"):
                 machine_file_formats = [file_type.strip() for file_type in container_stack.getMetaDataEntry("file_formats").split(";")]
                 if "text/x-gcode" in machine_file_formats:
-                    port_list = self.getSerialPortList(only_list_usb=True)
+                    port_list = self.getSerialPortList(only_list_usb=False)
             self._addRemovePorts(port_list)
             time.sleep(5)