diff --git a/plugins/USBPrinting/USBPrinterManager.py b/plugins/USBPrinting/USBPrinterManager.py
index 1e1cd538b3..4e9ba09cc5 100644
--- a/plugins/USBPrinting/USBPrinterManager.py
+++ b/plugins/USBPrinting/USBPrinterManager.py
@@ -56,6 +56,7 @@ class USBPrinterManager(QObject, SignalEmitter, OutputDevicePlugin, Extension):
     printerConnectionStateChanged = pyqtSignal()
 
     progressChanged = pyqtSignal()
+
     @pyqtProperty(float, notify = progressChanged)
     def progress(self):
         progress = 0