diff --git a/simple-calc/modules/MVUX-XAML/04-App Architecture/README.md b/simple-calc/modules/MVUX-XAML/04-App Architecture/README.md
index cc1559f..82d4c7e 100644
--- a/simple-calc/modules/MVUX-XAML/04-App Architecture/README.md	
+++ b/simple-calc/modules/MVUX-XAML/04-App Architecture/README.md	
@@ -12,7 +12,7 @@ public partial class MainPage : Page
     public MainPage()
     {
         InitializeComponent();
-        DataContext = new MainViewModel();
+        DataContext = new MainModel();
     }
 }
 ```
@@ -21,4 +21,4 @@ You'll notice that we didn't create an instance of `MainModel` but rather we cre
 
 [!include[Feeds and Commands](../../Resources/MVUX/Feeds-and-Commands.md)]
 
-**[Import UI from Figma](xref:Workshop.SimpleCalc.MVUX.XAML.Figma) or [Creating the Layout](xref:Workshop.SimpleCalc.MVUX.XAML.CreatingLayout) | [Next](xref:Workshop.SimpleCalc.MVUX.XAML.Finishing)**
\ No newline at end of file
+**[Import UI from Figma](xref:Workshop.SimpleCalc.MVUX.XAML.Figma) or [Creating the Layout](xref:Workshop.SimpleCalc.MVUX.XAML.CreatingLayout) | [Next](xref:Workshop.SimpleCalc.MVUX.XAML.Finishing)**