diff --git a/roles/bind-authoritative/templates/bind/named.conf.local.j2 b/roles/bind-authoritative/templates/bind/named.conf.local.j2
index 03ec5f08..a7b8d610 100644
--- a/roles/bind-authoritative/templates/bind/named.conf.local.j2
+++ b/roles/bind-authoritative/templates/bind/named.conf.local.j2
@@ -26,7 +26,7 @@ zone "_acme-challenge.crans.org" {
 	};
 	notify yes;
 	update-policy {
-		grant certbot_challenge. name _acme-challenge.crans.org txt;
+		grant certbot_challenge. name _acme-challenge.crans.org. txt;
 	};
 	{% else -%}
 	type slave;