diff --git a/admin-dev/themes/default/css/vendor/index.php b/admin-dev/themes/default/css/vendor/index.php
new file mode 100755
index 000000000..f42f03e4d
--- /dev/null
+++ b/admin-dev/themes/default/css/vendor/index.php
@@ -0,0 +1,35 @@
+<?php
+/*
+* 2007-2013 PrestaShop
+*
+* NOTICE OF LICENSE
+*
+* This source file is subject to the Open Software License (OSL 3.0)
+* that is bundled with this package in the file LICENSE.txt.
+* It is also available through the world-wide-web at this URL:
+* http://opensource.org/licenses/osl-3.0.php
+* If you did not receive a copy of the license and are unable to
+* obtain it through the world-wide-web, please send an email
+* to license@prestashop.com so we can send you a copy immediately.
+*
+* DISCLAIMER
+*
+* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
+* versions in the future. If you wish to customize PrestaShop for your
+* needs please refer to http://www.prestashop.com for more information.
+*
+*  @author PrestaShop SA <contact@prestashop.com>
+*  @copyright  2007-2013 PrestaShop SA
+*  @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
+*  International Registered Trademark & Property of PrestaShop SA
+*/
+				    	
+header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
+header("Last-Modified: ".gmdate("D, d M Y H:i:s")." GMT");
+						
+header("Cache-Control: no-store, no-cache, must-revalidate");
+header("Cache-Control: post-check=0, pre-check=0", false);
+header("Pragma: no-cache");
+						
+header("Location: ../");
+exit;
\ No newline at end of file
diff --git a/admin-dev/themes/default/css/nv.d3.css b/admin-dev/themes/default/css/vendor/nv.d3.css
similarity index 100%
rename from admin-dev/themes/default/css/nv.d3.css
rename to admin-dev/themes/default/css/vendor/nv.d3.css
diff --git a/controllers/admin/AdminDashboardController.php b/controllers/admin/AdminDashboardController.php
index c006fa09a..58d502113 100644
--- a/controllers/admin/AdminDashboardController.php
+++ b/controllers/admin/AdminDashboardController.php
@@ -49,7 +49,7 @@ class AdminDashboardControllerCore extends AdminController
 			_PS_JS_DIR_.'/admin-dashboard.js',
 		));
 		$this->addCSS(array(
-			__PS_BASE_URI__.$admin_webpath.'/themes/'.$this->bo_theme.'/css/nv.d3.css',
+			__PS_BASE_URI__.$admin_webpath.'/themes/'.$this->bo_theme.'/css/vendor/nv.d3.css',
 		));
 	}
 
diff --git a/modules/graphnvd3/graphnvd3.php b/modules/graphnvd3/graphnvd3.php
index 8e8112ebb..0b33cad20 100644
--- a/modules/graphnvd3/graphnvd3.php
+++ b/modules/graphnvd3/graphnvd3.php
@@ -66,7 +66,7 @@ class GraphNvD3 extends ModuleGraphEngine
 			_PS_JS_DIR_.'/vendor/d3.js',
 			__PS_BASE_URI__.$admin_webpath.'/themes/'.$this->context->employee->bo_theme.'/js/vendor/nv.d3.min.js',
 		));
-		$this->context->controller->addCSS(__PS_BASE_URI__.$admin_webpath.'/themes/'.$this->context->employee->bo_theme.'/css/nv.d3.css');
+		$this->context->controller->addCSS(__PS_BASE_URI__.$admin_webpath.'/themes/'.$this->context->employee->bo_theme.'/css/vendor/nv.d3.css');
 	}
 
 	public static function hookGraphEngine($params, $drawer)