diff --git a/ksetup/playbook.yaml b/ksetup/playbook.yaml
index 39a67c7..7932c87 100755
--- a/ksetup/playbook.yaml
+++ b/ksetup/playbook.yaml
@@ -24,13 +24,16 @@
     _kubeadm_join_command: "" # Placeholder
 
     # Others
-    is_proxmox_vm: "{{ is_proxmox_vm }} | default(false) | bool"
-    setup_only: "{{ setup_only }} | default(false) | bool" # Prevent creating/joining a cluster
+    _is_master: "{{ is_master | default('false') | bool }}" # Prevent creating/joining a cluster
+    _is_proxmox_vm: "{{ is_proxmox_vm | default('false') | bool }}" # Prevent creating/joining a cluster
+    _setup_only: "{{ setup_only | default('false') | bool }}" # Prevent creating/joining a cluster
 
   tasks:
-#    - check vars
+#   check vars
     - debug: var=set_hostname
-    - debug: var=is_master
+    - debug: var=_is_master
+    - debug: var=_is_proxmox_vm
+    - debug: var=_setup_only
 
     - name: Ping check
       ping:
@@ -40,16 +43,16 @@
       import_tasks: tasks_prepare_node.yaml
       become: true
 
-# If is_master: init
+# If _is_master: init
     - name: init cluster
       import_tasks: tasks_master.yaml
-      when: is_master and not setup_only
+      when: _is_master and not setup_only
       become: true
 
 # else: join
     - name: join cluster
       import_tasks: tasks_slave.yaml
-      when: not is_master and not setup_only
+      when: not _is_master and not setup_only
 
 # Do other stuff
     - name: post setup