diff --git a/usr/local/www/services_captiveportal_vouchers.php b/usr/local/www/services_captiveportal_vouchers.php
index f4f4b8976f..464d79540e 100644
--- a/usr/local/www/services_captiveportal_vouchers.php
+++ b/usr/local/www/services_captiveportal_vouchers.php
@@ -317,7 +317,7 @@ include("head.inc");
 function generatenewkey() {
 	$('publickey').value = 'One moment please...';
 	$('privatekey').value = 'One moment please...';
-	new Ajax.Request("services_captiveportal_vouchers.php?generatekey=true", {
+	new Ajax.Request("services_captiveportal_vouchers.php?zone=<?php echo($cpzone); ?>&generatekey=true", {
 		method: 'get',
 		onSuccess: function(transport) {	
 			eval(transport.responseText);