diff --git a/installers/docker/__lcm__.env b/installers/docker/__lcm__.env
index ee19aff..7341297 100644
--- a/installers/docker/__lcm__.env
+++ b/installers/docker/__lcm__.env
@@ -1,3 +1,4 @@
 OSMLCM_VCA_HOST=__JUJU_CONTROLLER_IP__
 OSMLCM_VCA_SECRET=__JUJU_PASSWORD__
 OSMLCM_VCA_PUBKEY=__JUJU_PUBKEY__
+OSMLCM_VCA_CACERT=__JUJU_CACERT__