diff --git a/molecule/alternative/playbook.yml b/molecule/alternative/playbook.yml
index 4acdfed95e613f8462b655dd06903706d0d1de85..9c9ffe12a0b285afae0b7b5e2de71a1c699a3ce2 100644
--- a/molecule/alternative/playbook.yml
+++ b/molecule/alternative/playbook.yml
@@ -9,4 +9,6 @@
     node_exporter_system_user: "root"
     node_exporter_textfile_dir: ""
     node_exporter_enabled_collectors:
-      - systemd
+      - entropy
+    node_exporter_disabled_collectors:
+      - diskstats
diff --git a/tasks/preflight.yml b/tasks/preflight.yml
index 227bad33729b6fffad316929ea4fafbb9bb333e1..545d18419222376cc9c6efdba3e6f19ce676fc22 100644
--- a/tasks/preflight.yml
+++ b/tasks/preflight.yml
@@ -24,7 +24,7 @@
 - name: Assert collectors are not both disabled and enabled at the same time
   assert:
     that:
-      - "item in node_exporter_enabled_collectors"
+      - "item not in node_exporter_enabled_collectors"
   with_items: "{{ node_exporter_disabled_collectors }}"
 
 - block: