diff --git a/templates/icehouse/neutron.conf b/templates/icehouse/neutron.conf
index 78814822..aa7ca65a 100644
--- a/templates/icehouse/neutron.conf
+++ b/templates/icehouse/neutron.conf
@@ -11,6 +11,8 @@ core_plugin = {{ core_plugin }}
 control_exchange = neutron
 notification_driver = neutron.openstack.common.notifier.list_notifier
 list_notifier_drivers = neutron.openstack.common.notifier.rabbit_notifier
+{% if network_device_mtu -%}
 network_device_mtu = {{ network_device_mtu }}
+{% endif -%}
 [agent]
-root_helper = sudo /usr/bin/neutron-rootwrap /etc/neutron/rootwrap.conf
\ No newline at end of file
+root_helper = sudo /usr/bin/neutron-rootwrap /etc/neutron/rootwrap.conf