diff --git a/roles/openvpn/client/tasks/main.yml b/roles/openvpn/client/tasks/main.yml
index dbd4b3381c..e30a76be75 100644
--- a/roles/openvpn/client/tasks/main.yml
+++ b/roles/openvpn/client/tasks/main.yml
@@ -16,13 +16,13 @@
   with_items:
   - { file: client.conf,
       dest: /etc/openvpn/openvpn.conf,
-      mode: 0644 }
+      mode: '0644' }
   - { file: "{{ puppet_private }}/vpn/openvpn/keys/client.crt",
       dest: "/etc/openvpn/{{ inventory_hostname }}.crt",
-      mode: 0644 }
+      mode: '0644' }
   - { file: "{{ puppet_private }}/vpn/openvpn/keys/client.key",
       dest: "/etc/openvpn/{{ inventory_hostname }}.key",
-      mode: 0600 }
+      mode: '0600' }
   tags:
   - install
   - openvpn
diff --git a/roles/openvpn/server/tasks/main.yml b/roles/openvpn/server/tasks/main.yml
index 5d55b94a31..16a97b92f8 100644
--- a/roles/openvpn/server/tasks/main.yml
+++ b/roles/openvpn/server/tasks/main.yml
@@ -26,16 +26,16 @@
   with_items:
   - { file: server.conf,
       dest: /etc/openvpn/openvpn.conf,
-      mode: 0644 }
+      mode: '0644' }
   - { file: "{{ puppet_private }}/vpn/openvpn/keys/server.crt",
       dest: /etc/openvpn/server.crt,
-      mode: 0644 }
+      mode: '0644' }
   - { file: "{{ puppet_private }}/vpn/openvpn/keys/server.key",
       dest: /etc/openvpn/server.key,
-      mode: 0600 }
+      mode: '0600' }
   - { file: "{{ puppet_private }}/vpn/openvpn/keys/dh2048.pem",
       dest: /etc/openvpn/server.key,
-      mode: 0644 }
+      mode: '0644' }
   tags:
   - install
   - openvpn