diff --git a/molecule/alternative/playbook.yml b/molecule/alternative/playbook.yml
index 022ea4ef..1c7fae88 100644
--- a/molecule/alternative/playbook.yml
+++ b/molecule/alternative/playbook.yml
@@ -11,6 +11,7 @@
       admin_password: "password"
     grafana_address: "127.0.0.1"
     grafana_auth:
+      login_maximum_inactive_lifetime_days: 42
       disable_login_form: false
       oauth_auto_login: false
       disable_signout_menu: false
diff --git a/molecule/alternative/tests/test_alternative.py b/molecule/alternative/tests/test_alternative.py
index 3d78a26c..c8903add 100644
--- a/molecule/alternative/tests/test_alternative.py
+++ b/molecule/alternative/tests/test_alternative.py
@@ -48,3 +48,8 @@ def test_alternative_yum_repo(host):
     if host.system_info.distribution in ['centos', 'redhat', 'fedora']:
         f = host.file("/etc/yum.repos.d/alternative.grafana.yum.repo")
         assert f.exists
+
+
+def test_custom_auth_option(host):
+    f = host.file("/etc/grafana/grafana.ini")
+    assert f.contains("login_maximum_inactive_lifetime_days = 42")