diff --git a/demo/Semi.Avalonia.Demo/Pages/SplitViewDemo.axaml b/demo/Semi.Avalonia.Demo/Pages/SplitViewDemo.axaml
index c8f65e3..38a6db3 100644
--- a/demo/Semi.Avalonia.Demo/Pages/SplitViewDemo.axaml
+++ b/demo/Semi.Avalonia.Demo/Pages/SplitViewDemo.axaml
@@ -25,7 +25,6 @@
 
                 <ToggleSwitch
                     Content="Placement"
-                    IsChecked="{Binding !IsLeft}"
                     OffContent="Left"
                     OnContent="Right" />