diff --git a/blocktopmenu.php b/blocktopmenu.php
index 75c7baa..b7fe894 100644
--- a/blocktopmenu.php
+++ b/blocktopmenu.php
@@ -66,6 +66,7 @@ class Blocktopmenu extends Module
 	public function install($delete_params = true)
 	{
 		if (!parent::install() ||
+			!$this->registerHook('header') ||
 			!$this->registerHook('displayTop') ||
 			!$this->registerHook('actionObjectCategoryUpdateAfter') ||
 			!$this->registerHook('actionObjectCategoryDeleteAfter') ||
@@ -713,6 +714,15 @@ class Blocktopmenu extends Module
 		return parent::getCacheId().'|'.$page_name.($page_name != 'index' ? '|'.(int)Tools::getValue('id_'.$page_name) : '');
 	}
 
+	public function hookHeader()
+	{
+		$this->context->controller->addJS($this->_path.'js/hoverIntent.js');
+		$this->context->controller->addJS($this->_path.'js/superfish-modified.js');
+		$this->context->controller->addJS($this->_path.'js/blocktopmenu.js');
+		$this->context->controller->addCSS($this->_path.'css/blocktopmenu.css');
+		$this->context->controller->addCSS($this->_path.'css/superfish-modified.css');
+	}
+
 	public function hookDisplayTop($param)
 	{
 		$this->user_groups = ($this->context->customer->isLogged() ?
@@ -731,12 +741,6 @@ class Blocktopmenu extends Module
 			$this->smarty->assign('this_path', $this->_path);
 		}
 
-		$this->context->controller->addJS($this->_path.'js/hoverIntent.js');
-		$this->context->controller->addJS($this->_path.'js/superfish-modified.js');
-		$this->context->controller->addJS($this->_path.'js/blocktopmenu.js');
-		$this->context->controller->addCSS($this->_path.'css/blocktopmenu.css');
-		$this->context->controller->addCSS($this->_path.'css/superfish-modified.css');
-
 		$html = $this->display(__FILE__, 'blocktopmenu.tpl', $this->getCacheId());
 		return $html;
 	}
diff --git a/upgrade/install-2.1.1.php b/upgrade/install-2.1.1.php
new file mode 100644
index 0000000..4cc8462
--- /dev/null
+++ b/upgrade/install-2.1.1.php
@@ -0,0 +1,32 @@
+<?php
+/*
+* 2007-2015 PrestaShop
+*
+* NOTICE OF LICENSE
+*
+* This source file is subject to the Academic Free License (AFL 3.0)
+* that is bundled with this package in the file LICENSE.txt.
+* It is also available through the world-wide-web at this URL:
+* http://opensource.org/licenses/afl-3.0.php
+* If you did not receive a copy of the license and are unable to
+* obtain it through the world-wide-web, please send an email
+* to license@prestashop.com so we can send you a copy immediately.
+*
+* DISCLAIMER
+*
+* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
+* versions in the future. If you wish to customize PrestaShop for your
+* needs please refer to http://www.prestashop.com for more information.
+*
+*  @author PrestaShop SA <contact@prestashop.com>
+*  @copyright  2007-2014 PrestaShop SA
+*  @license    http://opensource.org/licenses/afl-3.0.php  Academic Free License (AFL 3.0)
+*  International Registered Trademark & Property of PrestaShop SA
+*/
+if (!defined('_PS_VERSION_'))
+	exit;
+	
+function upgrade_module_2_1_1($object)
+{
+	return ($object->registerHook('header'));
+}