diff --git a/roles/backup_client/molecule/default/prepare.yml b/roles/backup_client/molecule/default/prepare.yml
index 51590dcd8b949bc0ae7cac593f6326e548e7c554..40993baeabd93c6902428a9b9f016279da6d9d88 100644
--- a/roles/backup_client/molecule/default/prepare.yml
+++ b/roles/backup_client/molecule/default/prepare.yml
@@ -120,5 +120,7 @@
     backup_users:
       - name: bak-param-mandatory-bullseye
         key: "{{ lookup('file', 'tests/data/ssh/parameters-mandatory.pub') }}"
+      - name: bak-param-mandatory-bookworm
+        key: "{{ lookup('file', 'tests/data/ssh/parameters-mandatory.pub') }}"
       - name: backupuser
         key: "{{ lookup('file', 'tests/data/ssh/parameters-optional.pub') }}"