diff --git a/tcp_tests/templates/cookied-bm-mcp-ocata-contrail/underlay.yaml b/tcp_tests/templates/cookied-bm-mcp-ocata-contrail/underlay.yaml
index f464e3d..ac7a2da 100644
--- a/tcp_tests/templates/cookied-bm-mcp-ocata-contrail/underlay.yaml
+++ b/tcp_tests/templates/cookied-bm-mcp-ocata-contrail/underlay.yaml
@@ -3,7 +3,7 @@
 
 #{% set DOMAIN_NAME = os_env('LAB_CONFIG_NAME', 'physical_mcp11_ovs_dpdk') + '.local' %}
 {% set LAB_CONFIG_NAME = os_env('LAB_CONFIG_NAME', 'cookied-bm-mcp-ocata-contrail') %}
-{% set DOMAIN_NAME = 'cookied-bm-mcp-ocata-contrail.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) %}