diff --git a/mailalerts.php b/mailalerts.php
index c0b86e2..d1e28f2 100644
--- a/mailalerts.php
+++ b/mailalerts.php
@@ -381,6 +381,7 @@ public function hookActionValidateOrder($params)
 			'{invoice_state}' => $invoice->id_state ? $invoice_state->name : '',
 			'{invoice_phone}' => $invoice->phone ? $invoice->phone : $invoice->phone_mobile,
 			'{invoice_other}' => $invoice->other,
+			'{id_order}' => $order->id,
 			'{order_name}' => $order->reference,
 			'{order_status}' => $order_state->name,
 			'{shop_name}' => $configuration['PS_SHOP_NAME'],