diff --git a/tcp_tests/templates/cookied-bm-mcp-ocata-dvr-vxlan/underlay.yaml b/tcp_tests/templates/cookied-bm-mcp-ocata-dvr-vxlan/underlay.yaml
index 06c353b..dbe0930 100644
--- a/tcp_tests/templates/cookied-bm-mcp-ocata-dvr-vxlan/underlay.yaml
+++ b/tcp_tests/templates/cookied-bm-mcp-ocata-dvr-vxlan/underlay.yaml
@@ -1,7 +1,7 @@
 # Set the repository suite, one of the: 'nightly', 'testing', 'stable', or any other required
 {% set REPOSITORY_SUITE = os_env('REPOSITORY_SUITE', 'testing') %}
 {% set LAB_CONFIG_NAME = os_env('LAB_CONFIG_NAME', 'cookied-bm-mcp-ocata-dvr-vxlan') %}
-{% set DOMAIN_NAME = 'cookied-bm-mcp-ocata-dvr-vxlan.local' %}
+{% set DOMAIN_NAME = os_env('DOMAIN_NAME', LAB_CONFIG_NAME + '.local') %}
 {% set HOSTNAME_CFG01 = os_env('HOSTNAME_CFG01', 'cfg01.' + DOMAIN_NAME) %}
 {% set HOSTNAME_KVM01 = os_env('HOSTNAME_KVM01', 'kvm01.' + DOMAIN_NAME) %}
 {% set HOSTNAME_KVM02 = os_env('HOSTNAME_KVM02', 'kvm02.' + DOMAIN_NAME) %}