diff --git a/roles/compute-node-config/templates/openstack-compute-vtn.yaml.j2 b/roles/compute-node-config/templates/openstack-compute-vtn.yaml.j2
index 0e89cdc..88ab8d1 100644
--- a/roles/compute-node-config/templates/openstack-compute-vtn.yaml.j2
+++ b/roles/compute-node-config/templates/openstack-compute-vtn.yaml.j2
@@ -27,14 +27,9 @@
 {% endif %}
 
 # VTN networking for OpenStack Compute Nodes
-{% for node in groups["compute"] %}
-{% if (('ipv4' in hostvars[node]['ansible_fabric']) or
-       ('ipv4' in hostvars[node]['ansible_br_int'])) %}
-{% if ('ipv4' in hostvars[node]['ansible_fabric']) %}
-{% set node_interface = hostvars[node]['ansible_fabric'] %}
-{% else %}
-{% set node_interface = hostvars[node]['ansible_br_int'] %}
-{% endif %}
+{% for node in groups['compute'] %}
+{% if 'ipv4' in hostvars[node]['ansible_' ~ compute_external_interface] %}
+{% set node_interface = hostvars[node]['ansible_' ~ compute_external_interface] %}
 
 # Compute node, fully defined in compute-nodes.yaml
     {{ hostvars[node]['ansible_hostname'] }}: