diff --git a/network/networks.j2.yaml b/network/networks.j2.yaml
index c790d3706c..48c509df47 100644
--- a/network/networks.j2.yaml
+++ b/network/networks.j2.yaml
@@ -3,9 +3,9 @@ heat_template_version: pike
 description: Create networks to split out Overcloud traffic
 
 resources:
-
   {%- for network in networks %}
-  {{network.name}}Network:
+  {%- set network_name = network.compat_name|default(network.name) %}
+  {{network_name}}Network:
     type: OS::TripleO::Network::{{network.name}}
   {%- endfor %}
 
@@ -19,8 +19,9 @@ outputs:
       # NOTE(gfidente): we need to replace the null value with a
       # string to work around https://bugs.launchpad.net/heat/+bug/1700025
       {%- for network in networks %}
+      {%- set network_name = network.compat_name|default(network.name) %}
       {{network.name_lower}}:
         yaql:
-          data: {get_attr: [{{network.name}}Network, subnet_cidr]}
+          data: {get_attr: [{{network_name}}Network, subnet_cidr]}
           expression: str($.data).replace('null', 'disabled')
       {%- endfor %}
diff --git a/network_data.yaml b/network_data.yaml
index 947769aea8..6ad37dfec9 100644
--- a/network_data.yaml
+++ b/network_data.yaml
@@ -17,6 +17,8 @@
 # allocation_pools: IP range list e.g. [{'start':'10.0.0.4', 'end':'10.0.0.250}]
 # gateway_ip: gateway for the network (optional, may use parameter defaults)
 # NOTE: IP-related values set parameter defaults in templates, may be overridden.
+# compat_name: for existing stack you may need to override the default transformation
+#              for the resource's name.
 #
 # Example:
 # - name Example
@@ -39,6 +41,7 @@
   vip: true
   ip_subnet: '172.16.2.0/24'
   allocation_pools: [{'start': '172.16.2.4', 'end': '172.16.2.250'}]
+  compat_name: Internal
 - name: Storage
   vip: true
   name_lower: storage