diff --git a/src/vs/workbench/browser/parts/activitybar/activitybarPart.ts b/src/vs/workbench/browser/parts/activitybar/activitybarPart.ts
index 71b5a3acb29..07f3e6f8b48 100644
--- a/src/vs/workbench/browser/parts/activitybar/activitybarPart.ts
+++ b/src/vs/workbench/browser/parts/activitybar/activitybarPart.ts
@@ -5,7 +5,7 @@
 
 'use strict';
 
-import 'vs/css!./media/activityBarPart';
+import 'vs/css!./media/activitybarpart';
 import nls = require('vs/nls');
 import {TPromise} from 'vs/base/common/winjs.base';
 import {Builder, $} from 'vs/base/browser/builder';
diff --git a/src/vs/workbench/browser/parts/activitybar/media/activityBarPart.css b/src/vs/workbench/browser/parts/activitybar/media/activitybarpart.css
similarity index 100%
rename from src/vs/workbench/browser/parts/activitybar/media/activityBarPart.css
rename to src/vs/workbench/browser/parts/activitybar/media/activitybarpart.css
diff --git a/src/vs/workbench/browser/parts/compositePart.ts b/src/vs/workbench/browser/parts/compositePart.ts
index 67c12c317a5..4b49e031cd7 100644
--- a/src/vs/workbench/browser/parts/compositePart.ts
+++ b/src/vs/workbench/browser/parts/compositePart.ts
@@ -3,7 +3,7 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-import 'vs/css!./media/compositePart';
+import 'vs/css!./media/compositepart';
 import nls = require('vs/nls');
 import timer = require('vs/base/common/timer');
 import uuid = require('vs/base/common/uuid');
diff --git a/src/vs/workbench/browser/parts/media/compositePart.css b/src/vs/workbench/browser/parts/media/compositepart.css
similarity index 100%
rename from src/vs/workbench/browser/parts/media/compositePart.css
rename to src/vs/workbench/browser/parts/media/compositepart.css
diff --git a/src/vs/workbench/browser/parts/panel/media/panelPart.css b/src/vs/workbench/browser/parts/panel/media/panelpart.css
similarity index 100%
rename from src/vs/workbench/browser/parts/panel/media/panelPart.css
rename to src/vs/workbench/browser/parts/panel/media/panelpart.css
diff --git a/src/vs/workbench/browser/parts/panel/panelPart.ts b/src/vs/workbench/browser/parts/panel/panelPart.ts
index 859ae39882c..ad2a0732d43 100644
--- a/src/vs/workbench/browser/parts/panel/panelPart.ts
+++ b/src/vs/workbench/browser/parts/panel/panelPart.ts
@@ -3,7 +3,7 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-import 'vs/css!./media/panelPart';
+import 'vs/css!./media/panelpart';
 import nls = require('vs/nls');
 import {TPromise} from 'vs/base/common/winjs.base';
 import {KeyMod, KeyCode, CommonKeybindings} from 'vs/base/common/keyCodes';
diff --git a/src/vs/workbench/browser/parts/statusbar/media/statusbarPart.css b/src/vs/workbench/browser/parts/statusbar/media/statusbarpart.css
similarity index 100%
rename from src/vs/workbench/browser/parts/statusbar/media/statusbarPart.css
rename to src/vs/workbench/browser/parts/statusbar/media/statusbarpart.css
diff --git a/src/vs/workbench/browser/parts/statusbar/statusbarPart.ts b/src/vs/workbench/browser/parts/statusbar/statusbarPart.ts
index 64fdedc32ea..da680e69bd4 100644
--- a/src/vs/workbench/browser/parts/statusbar/statusbarPart.ts
+++ b/src/vs/workbench/browser/parts/statusbar/statusbarPart.ts
@@ -5,7 +5,7 @@
 
 'use strict';
 
-import 'vs/css!./media/statusbarPart';
+import 'vs/css!./media/statusbarpart';
 import dom = require('vs/base/browser/dom');
 import types = require('vs/base/common/types');
 import nls = require('vs/nls');