diff --git a/aspnetcore/tutorials/first-mvc-app-mac/adding-controller.md b/aspnetcore/tutorials/first-mvc-app-mac/adding-controller.md
index 82182c0eed..7bedec8154 100644
--- a/aspnetcore/tutorials/first-mvc-app-mac/adding-controller.md
+++ b/aspnetcore/tutorials/first-mvc-app-mac/adding-controller.md
@@ -12,7 +12,7 @@ ms.technology: aspnet
 ms.prod: asp.net-core
 uid: tutorials/first-mvc-app-mac/adding-controller
 ---
-# Adding a controller to a ASP.NET Core MVC app with Visual Studio for Mac
+# Adding a controller to an ASP.NET Core MVC app with Visual Studio for Mac
 
 By [Rick Anderson](https://twitter.com/RickAndMSFT)