diff --git a/roles/openstack_helm_barbican/defaults/main.yml b/roles/openstack_helm_barbican/defaults/main.yml
index da86648..b38f2fd 100644
--- a/roles/openstack_helm_barbican/defaults/main.yml
+++ b/roles/openstack_helm_barbican/defaults/main.yml
@@ -21,3 +21,5 @@
 
 # List of annotations to apply to the Ingress
 openstack_helm_barbican_ingress_annotations: {}
+# Barbican key encryption key
+openstack_helm_barbican_kek: "{{ undef(hint='You must specify a Barbican key encryption key') }}"
\ No newline at end of file