diff --git a/src/Calculator/App.xaml.cpp b/src/Calculator/App.xaml.cpp
index 1a83fdb0..d89998c8 100644
--- a/src/Calculator/App.xaml.cpp
+++ b/src/Calculator/App.xaml.cpp
@@ -286,7 +286,7 @@ void App::OnAppLaunch(IActivatedEventArgs^ args, String^ argument)
         // Create a Frame to act as the navigation context
         rootFrame = App::CreateFrame();
 
-        // When the navigation stack isn't restored navigate to the first page,
+        // When the navigation stack isn't restored, navigate to the first page,
         // configuring the new page by passing required information as a navigation
         // parameter
         if (!rootFrame->Navigate(MainPage::typeid, argument))