diff --git a/README.md b/README.md
index b52d2238..f8eda5b2 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,8 @@ to compile it yourself, you’ll need:
 
 * Visual Studio 2012 or later, or Xamarin Studio
 * PowerShell 2.0 or greater. _For our build scripts_.
-
+* Windows 8 or higher to build and test the WinRT projects
+ 
 To clone it locally click the "Clone in Windows" button above or run the 
 following git commands.