diff --git a/roles/common/molecule/default/group_vars/parameters-optional.yml b/roles/common/molecule/default/group_vars/parameters-optional.yml
index 5501c5be31e304c2cf40558e0837ea9bc6ceaddf..67e22d6015ac7970b745fdad9249a0cff9a60f43 100644
--- a/roles/common/molecule/default/group_vars/parameters-optional.yml
+++ b/roles/common/molecule/default/group_vars/parameters-optional.yml
@@ -51,8 +51,9 @@ ntp_servers:
   - "1.debian.pool.ntp.org"
   - "2.debian.pool.ntp.org"
 maintenance: true
-maintenance_allowed_hosts:
-  - client1
+maintenance_allowed_sources:
+  - 192.168.56.3  # client1
+  - fd00::192:168:56:3  # client1
 pip_check_requirements_in:
   - pip >= 0.3.1
   - pip-tools >= 0.3.2