diff --git a/roles/openvpn/base/tasks/main.yml b/roles/openvpn/base/tasks/main.yml
index b91b9ab79e..10933e6526 100644
--- a/roles/openvpn/base/tasks/main.yml
+++ b/roles/openvpn/base/tasks/main.yml
@@ -15,10 +15,10 @@
   with_items:
   - { file: "{{ puppet_private }}/vpn/openvpn/keys/ca.crt",
       dest: /etc/openvpn/ca.crt,
-      mode: 0600 }
+      mode: '0600' }
   - { file: "{{ puppet_private }}/vpn/openvpn/keys/crl.pem",
       dest: /etc/openvpn/crl.pem,
-      mode: 0644 }
+      mode: '0644' }
   tags:
   - install
   - openvpn