diff --git a/src/ShadowCss/ShadowCSS.js b/src/ShadowCSS/ShadowCSS.js
similarity index 100%
rename from src/ShadowCss/ShadowCSS.js
rename to src/ShadowCSS/ShadowCSS.js
diff --git a/src/WebComponents/build.json b/src/WebComponents/build.json
index aba9db2..2a7ca7c 100644
--- a/src/WebComponents/build.json
+++ b/src/WebComponents/build.json
@@ -2,7 +2,7 @@
   "build/boot.js",
   "build/if-poly.js",
   "../ShadowDOM/build.json",
-  "../ShadowCss/ShadowCss.js",
+  "../ShadowCSS/ShadowCSS.js",
   "build/end-if.js",
   "shadowdom.js",
   "../HTMLImports/build.json",
diff --git a/tests/ShadowCss/runner.html b/tests/ShadowCss/runner.html
index 5d9eaed..6a9a669 100644
--- a/tests/ShadowCss/runner.html
+++ b/tests/ShadowCss/runner.html
@@ -4,7 +4,7 @@ Copyright 2013 The Polymer Authors. All rights reserved.
 Use of this source code is governed by a BSD-style
 license that can be found in the LICENSE file.
 -->
-<title>ShadowCss Tests</title>
+<title>ShadowCSS Tests</title>
 <meta charset="utf-8">
 
 <!-- Mocha/Chai -->
diff --git a/tests/runner.html b/tests/runner.html
index 6e86401..16ad1b0 100644
--- a/tests/runner.html
+++ b/tests/runner.html
@@ -24,7 +24,7 @@ license that can be found in the LICENSE file.
 <script src="CustomElements/tests.js"></script>
 <script src="HTMLImports/tests.js"></script>
 <script src="ShadowDOM/tests.js"></script>
-<script src="ShadowCss/tests.js"></script>
+<script src="ShadowCSS/tests.js"></script>
 <script src="WebComponents/tests.js"></script>
 
 <script>
diff --git a/webcomponents.js b/webcomponents.js
index 4f38baf..395297f 100644
--- a/webcomponents.js
+++ b/webcomponents.js
@@ -7,7 +7,7 @@
 (function() {
 
   // Establish scope.
-  window.WebComponents = window.WebComponents || {flags:{}};  
+  window.WebComponents = window.WebComponents || {flags:{}};
 
   // loading script
   var file = 'webcomponents.js';
@@ -44,7 +44,7 @@
   // Determine default settings.
   // If any of these flags match 'native', then force native ShadowDOM; any
   // other truthy value, or failure to detect native
-  // ShadowDOM, results in polyfill 
+  // ShadowDOM, results in polyfill
   flags.shadow = (flags.shadow || flags.shadowdom || flags.polyfill);
   if (flags.shadow === 'native') {
     flags.shadow = false;
@@ -60,7 +60,7 @@
   var ShadowDOMPolyfill = [
     'ShadowDOM/ShadowDOM.js',
     'WebComponents/shadowdom.js',
-    'ShadowCss/ShadowCSS.js'
+    'ShadowCSS/ShadowCSS.js'
   ];
 
   // select ShadowDOM impl
@@ -83,12 +83,12 @@
 
   var src = script.getAttribute('src');
   var path = src.slice(0, src.lastIndexOf(file));
-  
+
   modules.forEach(function(f) {
     document.write('<script src="' + path + 'src/' + f + '"></script>');
   });
 
-  // exports 
+  // exports
   WebComponents.flags = flags;
 
 })();