diff --git a/src/Gui/resource.cpp b/src/Gui/resource.cpp
index 8bcd36d7d8..c0c8e74f05 100644
--- a/src/Gui/resource.cpp
+++ b/src/Gui/resource.cpp
@@ -94,6 +94,7 @@ WidgetFactorySupplier::WidgetFactorySupplier()
     new WidgetProducer<Gui::PrefDoubleSpinBox>;
     new WidgetProducer<Gui::PrefLineEdit>;
     new WidgetProducer<Gui::PrefComboBox>;
+    new WidgetProducer<Gui::PrefFontBox>;
     new WidgetProducer<Gui::PrefCheckBox>;
     new WidgetProducer<Gui::PrefRadioButton>;
     new WidgetProducer<Gui::PrefSlider>;