diff --git a/playbook.yml b/playbook.yml
index 745fca0..61b6f51 100644
--- a/playbook.yml
+++ b/playbook.yml
@@ -2,9 +2,9 @@
 - name: ensure safe environment for exams
   hosts: localhost
   vars:
-    - pruefungsuser: "pruefling"
-    - pruefungsgruppe: "prueflinge"
-    - pruefungspasswort: "pruefung"
+    pruefungsuser: "pruefling"
+    pruefungsgruppe: "prueflinge"
+    pruefungspasswort: "pruefung"
   environment:
     PATH: "/sbin:{{ ansible_env.PATH }}"