diff --git a/samples/BindingTest/MainWindow.paml b/samples/BindingTest/MainWindow.paml
index cfe10d3ab4..9c02eade0d 100644
--- a/samples/BindingTest/MainWindow.paml
+++ b/samples/BindingTest/MainWindow.paml
@@ -10,7 +10,6 @@
             <TextBox Watermark="Two Way" UseFloatingWatermark="True" Text="{Binding Path=StringValue}" Name="first"/>
             <TextBox Watermark="One Way" UseFloatingWatermark="True" Text="{Binding Path=StringValue, Mode=OneWay}"/>
             <TextBox Watermark="One Time" UseFloatingWatermark="True" Text="{Binding Path=StringValue, Mode=OneTime}"/>
-            <!--<TextBox Watermark="One Way To Source" UseFloatingWatermark="True" Text="{Binding Path=StringValue, Mode=OneWayToSource}"/>-->
           </StackPanel>
           <StackPanel Margin="18" Gap="4" Width="200">
             <TextBlock FontSize="16" Text="Collection Bindings"/>