diff --git a/controllers/front/PageNotFoundController.php b/controllers/front/PageNotFoundController.php
index 723e2ea12..efba608d4 100644
--- a/controllers/front/PageNotFoundController.php
+++ b/controllers/front/PageNotFoundController.php
@@ -36,6 +36,8 @@ class PageNotFoundControllerCore extends FrontController
 	 */
 	public function initContent()
 	{
+		header('HTTP/1.1 404 Not Found');
+		header('Status: 404 Not Found');
 		parent::initContent();
 
 		$this->setTemplate(_PS_THEME_DIR_.'404.tpl');