diff --git a/roles/ceph-mon/tasks/main.yml b/roles/ceph-mon/tasks/main.yml
index 15bae8deb..4f0fed6b0 100644
--- a/roles/ceph-mon/tasks/main.yml
+++ b/roles/ceph-mon/tasks/main.yml
@@ -1,4 +1,6 @@
 ---
+- include: check_mandatory_vars.yml
+
 - include: deploy_monitors.yml
   when: not containerized_deployment