diff --git a/_includes/top.html b/_includes/top.html
index e9457d8699..f3d51dcd92 100644
--- a/_includes/top.html
+++ b/_includes/top.html
@@ -8,7 +8,7 @@
   <link rel="alternate" type="application/rss+xml" title="Jekyll • Simple, blog-aware, static sites - Feed" href="/feed.xml">
   <link rel="alternate" type="application/atom+xml" title="Recent commits to Jekyll’s master branch" href="{{ site.repository }}/commits/master.atom">
   <link rel="stylesheet" href="//fonts.googleapis.com/css?family=Lato:300,300italic,400,400italic,700,700italic,900">
-  <link rel="stylesheet" href="/css/screen.css">
+  <link rel="stylesheet" href="{{ site.baseurl }}/css/screen.css">
   <link rel="icon" type="image/x-icon" href="/favicon.ico">
   <!--[if lt IE 9]>
   <script src="/js/html5shiv.js"></script>