diff --git a/cloudmon/ansible/project/roles/graphite/vars/Debian.yaml b/cloudmon/ansible/project/roles/graphite/vars/Debian.yaml
index 3d95ca0..cc7e97b 100644
--- a/cloudmon/ansible/project/roles/graphite/vars/Debian.yaml
+++ b/cloudmon/ansible/project/roles/graphite/vars/Debian.yaml
@@ -7,5 +7,7 @@ remove_packages: []
 
 packages:
   - netcat-openbsd
+  # ansible.builtin.cron needs the crontab binary.
+  - cron
 
 container_command: docker