diff --git a/index.html b/index.html
index 240df1af..a70a70db 100644
--- a/index.html
+++ b/index.html
@@ -29,7 +29,7 @@
         <link rel="stylesheet" href="<%= BASE_URL %>static/css/maps/main.css.map">
 
         <!-- This is for sluice -->
-        <link href='http://fonts.googleapis.com/css?family=Nunito:400,700,300' rel='stylesheet' type='text/css'>
+        <link href='//fonts.googleapis.com/css?family=Nunito:400,700,300' rel='stylesheet' type='text/css'>
         <script>
             window.BASE_URL = '<%= BASE_URL %>';
             window.SERVER_URL = '<%= SERVER_URL %>';