diff --git a/templates/havana/ovs_neutron_plugin.ini b/templates/havana/ovs_neutron_plugin.ini
index 96d0f824..e58afd65 100644
--- a/templates/havana/ovs_neutron_plugin.ini
+++ b/templates/havana/ovs_neutron_plugin.ini
@@ -7,3 +7,8 @@ local_ip = {{ local_ip }}
 tenant_network_type = gre
 enable_tunneling = True
 tunnel_id_ranges = 1:1000
+
+[agent]
+{% if veth_mtu -%}
+veth_mtu = {{ veth_mtu }}
+{% endif %}