diff --git a/ansible/inventory/host_vars/nuremberg-a.yml b/ansible/inventory/host_vars/nuremberg-a.yml
index e06d9db..b4df27e 100644
--- a/ansible/inventory/host_vars/nuremberg-a.yml
+++ b/ansible/inventory/host_vars/nuremberg-a.yml
@@ -3,6 +3,10 @@ host_role: mail
 host_description: "Mail server (poste.io)"
 host_location: "Hetzner Cloud"
 ansible_python_interpreter: /usr/bin/python3
+
+docker_services:
+  - poste-io
+
 # NOTE: Alpine host — UFW tasks are Debian-only.
 # Firewall: iptables + fail2ban managed by firewall_alpine role.
 # Mail ports (25,80,110,143,443,465,587,993,995) exposed via Docker