diff --git a/vars/main.yml b/vars/main.yml
index 5b9bfaa..aa40cc1 100644
--- a/vars/main.yml
+++ b/vars/main.yml
@@ -5,10 +5,10 @@ __pve_certificates:
     path: /etc/pki/tls/certs
     source: "{{ pve_tls_cert_source }}"
     nodes: "{{ pve_nodes }}"
-    mode: 0750
+    mode: "0750"
   key:
     name: pveproxy-ssl.key
     path: /etc/pki/tls/private
     source: "{{ pve_tls_key_source }}"
     nodes: "{{ pve_nodes }}"
-    mode: 0600
+    mode: "0600"