diff --git a/roles/php_website/tasks/main.yml b/roles/php_website/tasks/main.yml
index 4f459d2658fa4c18d482e774f21139bab3b523d4..13751868d871a4bd4d35d18b13d8a950754d76c4 100644
--- a/roles/php_website/tasks/main.yml
+++ b/roles/php_website/tasks/main.yml
@@ -22,7 +22,7 @@
     state: directory
     owner: "{{ admin }}"
     group: "{{ user }}"
-    mode: 0750
+    mode: "0750"
 
 - name: Create PHP website user
   user:
@@ -55,7 +55,7 @@
     dest: "{{ home }}/.forward"
     owner: root
     group: "{{ user }}"
-    mode: 0640
+    mode: "0640"
 
 - name: Install extra packages for website
   apt:
@@ -69,7 +69,7 @@
     validate: "{{ php_fpm_binary }} -t -y %s"
     owner: root
     group: root
-    mode: 0640
+    mode: "0640"
   notify:
     - Restart PHP-FPM
 
@@ -79,7 +79,7 @@
     content: "{{ https_tls_key }}"
     owner: root
     group: root
-    mode: 0640
+    mode: "0640"
   notify:
     - Restart nginx
 
@@ -89,7 +89,7 @@
     content: "{{ https_tls_certificate }}"
     owner: root
     group: root
-    mode: 0644
+    mode: "0644"
   notify:
     - Restart nginx
 
@@ -99,7 +99,7 @@
     dest: "/etc/check_certificate/{{ fqdn }}_https.conf"
     owner: root
     group: root
-    mode: 0644
+    mode: "0644"
 
 - name: Deploy nginx configuration file for website
   template:
@@ -107,7 +107,7 @@
     dest: "/etc/nginx/sites-available/{{ fqdn }}"
     owner: root
     group: root
-    mode: 0640
+    mode: "0640"
     validate: "/usr/local/bin/nginx_verify_site.sh -n '{{ fqdn }}' %s"
   notify:
     - Restart nginx