diff --git a/doc/source/guides/neutron.rst b/doc/source/guides/neutron.rst
index 5891f68..c7a1153 100644
--- a/doc/source/guides/neutron.rst
+++ b/doc/source/guides/neutron.rst
@@ -215,6 +215,7 @@
         ## Neutron Networking options used to create Neutron Subnets
 
         FIXED_RANGE="203.0.113.0/24"
+        NETWORK_GATEWAY=203.0.113.1
         PROVIDER_SUBNET_NAME="provider_net"
         PROVIDER_NETWORK_TYPE="vlan"
         SEGMENTATION_ID=2010