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 61affd87f11d66acc4a88ce9574ccd7f99071709..3e24e9c959626e6b52cd2dcc816ddf4e6c467c6f 100644
--- a/roles/mail_server/molecule/default/host_vars/ldap-server.yml
+++ b/roles/mail_server/molecule/default/host_vars/ldap-server.yml
@@ -43,10 +43,6 @@ backup_host_ssh_private_keys:
   ecdsa: "{{ lookup('file', 'tests/data/ssh/server_ecdsa') }}"
 backup_clients:
 
-  - server: param-optional-buster
-    ip: 192.168.56.32
-    public_key: "{{ lookup('file', 'tests/data/ssh/parameters-optional.pub') }}"
-
   - server: param-optional-bullseye
     ip: 192.168.56.52
     public_key: "{{ lookup('file', 'tests/data/ssh/parameters-optional.pub') }}"