diff --git a/deployment/puppet/nailgun/examples/nailgun-only.pp b/deployment/puppet/nailgun/examples/nailgun-only.pp
index 79eb427569..cb8bf97845 100644
--- a/deployment/puppet/nailgun/examples/nailgun-only.pp
+++ b/deployment/puppet/nailgun/examples/nailgun-only.pp
@@ -84,9 +84,15 @@ $mco_user = $::fuel_settings['mcollective']['user']
 $mco_password = $::fuel_settings['mcollective']['password']
 $mco_connector = "rabbitmq"
 
-$ntp_server_list = delete(delete_undef_values([$::fuel_settings['NTP1'],
-  $::fuel_settings['NTP2'], $::fuel_settings['NTP3']]), '')
-$ntp_servers = join($ntp_server_list, ', ')
+if empty($::fuel_settings['NTP1']) and 
+   empty($::fuel_settings['NTP2']) and 
+   empty($::fuel_Settings['NTP3']) {
+  $ntp_servers = $::fuel_settings['ADMIN_NETWORK']['ipaddress']
+} else {
+  $ntp_server_list = delete(delete_undef_values([$::fuel_settings['NTP1'],
+    $::fuel_settings['NTP2'], $::fuel_settings['NTP3']]), '')
+  $ntp_servers = join($ntp_server_list, ', ')
+}
 
 $dns_upstream = regsubst($::fuel_settings['DNS_UPSTREAM'], ' ', ', ', 'G')