diff --git a/controllers/front/OrderOpcController.php b/controllers/front/OrderOpcController.php
index c2898092d..7a7c99c6e 100644
--- a/controllers/front/OrderOpcController.php
+++ b/controllers/front/OrderOpcController.php
@@ -30,6 +30,10 @@ class OrderOpcControllerCore extends ParentOrderController
 	public $php_self = 'order-opc';
 	public $isLogged;
 
+	/**
+	 * Initialize supplier controller
+	 * @see FrontController::init()
+	 */
 	public function init()
 	{
 		parent::init();
@@ -221,6 +225,10 @@ class OrderOpcControllerCore extends ParentOrderController
 		$this->addJS(_THEME_JS_DIR_.'tools/statesManagement.js');
 	}
 
+	/**
+	 * Assign template vars related to page content
+	 * @see FrontController::process()
+	 */
 	public function process()
 	{
 		// SHOPPING CART
diff --git a/controllers/front/OrderSlipController.php b/controllers/front/OrderSlipController.php
index 50e2dbb04..15661e4bb 100644
--- a/controllers/front/OrderSlipController.php
+++ b/controllers/front/OrderSlipController.php
@@ -40,6 +40,10 @@ class OrderSlipControllerCore extends FrontController
 		$this->addJS(array(_PS_JS_DIR_.'jquery/jquery.scrollTo-1.4.2-min.js',_THEME_JS_DIR_.'history.js'));
 	}
 
+	/**
+	 * Assign template vars related to page content
+	 * @see FrontController::process()
+	 */
 	public function process()
 	{
 		$this->context->smarty->assign('ordersSlip', OrderSlip::getOrdersSlip((int)($this->context->cookie->id_customer)));
diff --git a/controllers/front/PageNotFoundController.php b/controllers/front/PageNotFoundController.php
index b781ae95c..2f7efc10c 100644
--- a/controllers/front/PageNotFoundController.php
+++ b/controllers/front/PageNotFoundController.php
@@ -29,6 +29,10 @@ class PageNotFoundControllerCore extends FrontController
 {
 	public $php_self = '404';
 
+	/**
+	 * Assign template vars related to page content
+	 * @see FrontController::process()
+	 */
 	public function process()
 	{
 		$this->setTemplate(_PS_THEME_DIR_.'404.tpl');