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 d520d62..3de4ae9 100644
--- a/tcp_tests/templates/cookied-bm-mcp-ocata-contrail/underlay.yaml
+++ b/tcp_tests/templates/cookied-bm-mcp-ocata-contrail/underlay.yaml
@@ -14,6 +14,7 @@
 {% set HOSTNAME_CMP002 = os_env('HOSTNAME_CMP002', 'cmp002.' + DOMAIN_NAME) %}
 # {# set HOSTNAME_GTW01 = os_env('HOSTNAME_GTW01', 'gtw01.' + DOMAIN_NAME) #}
 # {# set HOSTNAME_GTW02 = os_env('HOSTNAME_GTW02', 'gtw02.' + DOMAIN_NAME) #}
+{% set HOSTNAME_CTL01 = os_env('HOSTNAME_CTL01', 'ctl01.' + DOMAIN_NAME) %}
 
 {% set ETH1_IP_ADDRESS_CFG01 = os_env('ETH1_IP_ADDRESS_CFG01', '172.16.49.66') %}
 {% set ETH0_IP_ADDRESS_KVM01 = os_env('ETH0_IP_ADDRESS_KVM01', '172.16.49.67') %}