diff --git a/roles/mail_server/molecule/default/host_vars/ldap-server.yml b/roles/mail_server/molecule/default/host_vars/ldap-server.yml
index 3e24e9c959626e6b52cd2dcc816ddf4e6c467c6f..9b8ed2cf29c69a47f379949880bb526be0be1221 100644
--- a/roles/mail_server/molecule/default/host_vars/ldap-server.yml
+++ b/roles/mail_server/molecule/default/host_vars/ldap-server.yml
@@ -46,3 +46,7 @@ backup_clients:
   - server: param-optional-bullseye
     ip: 192.168.56.52
     public_key: "{{ lookup('file', 'tests/data/ssh/parameters-optional.pub') }}"
+
+  - server: param-optional-bookworm
+    ip: 192.168.56.32
+    public_key: "{{ lookup('file', 'tests/data/ssh/parameters-optional.pub') }}"