diff --git a/roles/backup_server/molecule/default/tests/test_default.py b/roles/backup_server/molecule/default/tests/test_default.py
index 9a5d9ccb10282a9c912183218a10099d24a48a6e..a3a1f99b8fc828458cffa00feb6315426ba71c6c 100644
--- a/roles/backup_server/molecule/default/tests/test_default.py
+++ b/roles/backup_server/molecule/default/tests/test_default.py
@@ -1,7 +1,10 @@
+import os
+
 import testinfra.utils.ansible_runner
 
+
 testinfra_hosts = testinfra.utils.ansible_runner.AnsibleRunner(
-    '.molecule/ansible_inventory.yml').get_hosts('all')
+    os.environ['MOLECULE_INVENTORY_FILE']).get_hosts(['parameters-mandatory', 'parameters-optional'])
 
 
 def test_installed_software(host):