diff --git a/spec/index.html b/spec/index.html
index d16573f46..3747b1002 100644
--- a/spec/index.html
+++ b/spec/index.html
@@ -15,7 +15,6 @@
     <meta http-equiv="cleartype" content="on">
     <link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
     <link href="https://fonts.googleapis.com/css?family=Roboto:300,400,500,700" rel="stylesheet">
-    <link rel="stylesheet" href="/build/spec.css">
   </head>
   <body>
     <script src="/build/spec.js"></script>
diff --git a/webpack.config.development.js b/webpack.config.development.js
index 60c96d017..aafc6a2c0 100644
--- a/webpack.config.development.js
+++ b/webpack.config.development.js
@@ -47,7 +47,7 @@ module.exports = {
     ];
   },
   plugins: [
-    new ExtractTextPlugin('spec.css', { allChunks: true }),
+    new ExtractTextPlugin('spec.css', { allChunks: true, disable: true }),
     new webpack.HotModuleReplacementPlugin(),
     new webpack.NoErrorsPlugin(),
     new webpack.DefinePlugin({
