diff --git a/demo/Ursa.Demo/App.axaml.cs b/demo/Ursa.Demo/App.axaml.cs
index 71665e9..980608c 100644
--- a/demo/Ursa.Demo/App.axaml.cs
+++ b/demo/Ursa.Demo/App.axaml.cs
@@ -18,9 +18,8 @@ public partial class App : Application
     {
         if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
         {
-            desktop.MainWindow = new Window()
+            desktop.MainWindow = new MainWindow()
             {
-                Content = new SingleView(),
                 DataContext = new MainViewViewModel(),
             };
         }