diff --git a/src/WpfMath.Example/MainWindow.xaml b/src/WpfMath.Example/MainWindow.xaml
index 85e28de4..428a3def 100644
--- a/src/WpfMath.Example/MainWindow.xaml
+++ b/src/WpfMath.Example/MainWindow.xaml
@@ -61,6 +61,7 @@
             <ScrollViewer Padding="4" HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Disabled">
                 <controls:FormulaControl Name="Formula" Formula="{Binding Text, ElementName = InputTextBox, NotifyOnValidationError=True}"
                                          SelectionBrush="LightBlue"
+                                         SystemTextFontName="Arial"
                                          HorizontalAlignment="Stretch" VerticalAlignment="Stretch" SnapsToDevicePixels="True" />
             </ScrollViewer>
         </Border>
diff --git a/src/WpfMath/Controls/FormulaControl.xaml.cs b/src/WpfMath/Controls/FormulaControl.xaml.cs
index 2b16f185..87e49269 100644
--- a/src/WpfMath/Controls/FormulaControl.xaml.cs
+++ b/src/WpfMath/Controls/FormulaControl.xaml.cs
@@ -81,7 +81,7 @@ public Brush SelectionBrush
 
         public static readonly DependencyProperty SystemTextFontNameProperty = DependencyProperty.Register(
             nameof(SystemTextFontName), typeof(string), typeof(FormulaControl),
-            new PropertyMetadata("Arial", OnRenderSettingsChanged, CoerceScaleValue));
+            new PropertyMetadata("Arial", OnRenderSettingsChanged));
 
         public static readonly DependencyProperty HasErrorProperty = DependencyProperty.Register(
             nameof(HasError), typeof(bool), typeof(FormulaControl),