diff --git a/roles/master/templates/var/lib/knot/master/zone.j2 b/roles/master/templates/var/lib/knot/master/zone.j2
index 5b6ea50..7d38d15 100644
--- a/roles/master/templates/var/lib/knot/master/zone.j2
+++ b/roles/master/templates/var/lib/knot/master/zone.j2
@@ -1,3 +1,4 @@
+{{ ansible_managed | comment(decoration="; ") }}
 
 $TTL	{{ zone.soa.ttl }}