diff --git a/lxc-php/tasks/umask.yml b/lxc-php/tasks/umask.yml
index 4a2fde5d..170851ab 100644
--- a/lxc-php/tasks/umask.yml
+++ b/lxc-php/tasks/umask.yml
@@ -25,6 +25,7 @@
     regex: "^UMask="
     line: "UMask=0007"
     insertafter: "\\[Service\\]"
+  when: not ansible_check_mode
   notify:
     - "Daemon reload"
     - "Restart PHP-FPM"