diff --git a/html/pages/addhost.inc.php b/html/pages/addhost.inc.php
index f5a84f420b..828ab19f8c 100644
--- a/html/pages/addhost.inc.php
+++ b/html/pages/addhost.inc.php
@@ -24,7 +24,7 @@ if ($_POST['hostname'])
 
       $snmpver = mres($_POST['snmpver']);
       if ($_POST['port']) { $port = mres($_POST['port']); } else { $port = $config['snmp']['port']; }
-      $transport = mres($_POST['transport']);
+      if ($_POST['transport']) { $transport = mres($_POST['transport']); } else { $transport = "udp"; }
       print_message("Adding host $hostname communit" . (count($config['snmp']['community']) == 1 ? "y" : "ies") . " "  . implode(', ',$config['snmp']['community']) . " port $port using $transport");
     }
     elseif ($_POST['snmpver'] === "v3")