diff --git a/docker/MON/Dockerfile b/docker/MON/Dockerfile
index ecb475f..77aa909 100644
--- a/docker/MON/Dockerfile
+++ b/docker/MON/Dockerfile
@@ -79,6 +79,7 @@
 ENV OSMMON_VCA_HOST localhost
 ENV OSMMON_VCA_SECRET secret
 ENV OSMMON_VCA_USER admin
+ENV OSMMON_VCA_CACERT cacert
 ENV OSMMON_DATABASE_COMMONKEY changeme
 ENV OSMMON_COLLECTOR_INTERVAL 30
 ENV OSMMON_EVALUATOR_INTERVAL 30