diff --git a/classes/cluster/os-ha-contrail-40/.env b/classes/cluster/os-ha-contrail-40/.env
index ffe5d4d..3265c0a 100644
--- a/classes/cluster/os-ha-contrail-40/.env
+++ b/classes/cluster/os-ha-contrail-40/.env
@@ -1,4 +1,4 @@
-EXTRA_FORMULAS="barbican linux salt reclass maas memcached openssh ntp sphinx \
+EXTRA_FORMULAS="barbican cassandra linux salt reclass maas memcached openssh ntp sphinx \
         grafana libvirt rsyslog glusterfs postfix xtrabackup freeipa prometheus telegraf \
         elasticsearch kibana rundeck devops-portal rsync docker keepalived aptly jenkins \
         gerrit artifactory influxdb horizon nginx collectd heka mysql nova opencontrail logrotate"