diff --git a/src/ukatali/mainwindow.py b/src/ukatali/mainwindow.py
index 246d7cb..7174f21 100644
--- a/src/ukatali/mainwindow.py
+++ b/src/ukatali/mainwindow.py
@@ -383,7 +383,7 @@ class MainWindow(QtWidgets.QMainWindow):
         margin_top = float(self.settings.value('margin_top', 20))
         margin_bottom = float(self.settings.value('margin_bottom', 20))
         self.settings.endGroup()
-        margins = QtCore.QMarginsF(QtCore.QMargins(margin_left, margin_top, margin_right, margin_bottom))
+        margins = QtCore.QMarginsF(margin_left, margin_top, margin_right, margin_bottom)
         page_layout = QtGui.QPageLayout(page_size, orientation, margins, unit)
         # Export to PDF
         self.preview_view.page().printToPdf(str(filename), page_layout)