diff --git a/firefox.yml b/firefox.yml
index c71e25c..236f52a 100644
--- a/firefox.yml
+++ b/firefox.yml
@@ -9,7 +9,7 @@
         owner: root
         group: root
         create: yes
-        marker: ""
+        marker: "# {mark} ANSIBLE MANAGED BLOCK"
         block: |
           {
             "policies": {