diff --git a/README.md b/README.md
index c963c95..801d7a9 100644
--- a/README.md
+++ b/README.md
@@ -46,7 +46,7 @@ google_analytics: [Your Google Analytics tracking ID]
 
 If you'd like to add your own custom styles:
 
-1. Create a file called `/assets/css/style.css` in your site
+1. Create a file called `/assets/css/style.scss` in your site
 2. Add the following content to the top of the file, exactly as shown:
     ```scss
     ---