diff --git a/controllers/front/ajax.php b/controllers/front/ajax.php
index 166a1f5..c77698e 100644
--- a/controllers/front/ajax.php
+++ b/controllers/front/ajax.php
@@ -36,10 +36,12 @@ public function initContent()
 
         if (!Validate::isLoadedObject($order) || $order->id_customer != (int) Tools::getValue('customer')) {
             $this->ajaxRender('KO');
+            exit;
         }
 
         (new GanalyticsRepository())->markOrderAsSent((int) $orderId);
 
         $this->ajaxRender('OK');
+        exit;
     }
 }