diff --git a/opnsense-carp-dhcp.php b/opnsense-carp-dhcp.php
index c8b2c2d..5312509 100644
--- a/opnsense-carp-dhcp.php
+++ b/opnsense-carp-dhcp.php
@@ -123,7 +123,7 @@ $config['gateways']['gateway_item'][$gwCount]['gateway'] = $gatewayIP;
 $config['gateways']['gateway_item'][$gwCount]['interface'] = $interface;
 $config['gateways']['gateway_item'][$gwCount]['name'] = $gatewayName;
 $config['gateways']['gateway_item'][$gwCount]['ipprotocol'] = 'inet';
-$config['gateways']['gateway_item'][$gwCount]['monitor_dsiable'] = 1;
+$config['gateways']['gateway_item'][$gwCount]['monitor_disable'] = 1;
 $config['gateways']['gateway_item'][$gwCount]['defaultgw'] = 1;
 $config['gateways']['gateway_item'][$gwCount]['fargw'] = 1;