diff --git a/host_vars/munin.dmz.mateu.be.yml b/host_vars/munin.dmz.mateu.be.yml
index 9539d82..7d4fcd4 100644
--- a/host_vars/munin.dmz.mateu.be.yml
+++ b/host_vars/munin.dmz.mateu.be.yml
@@ -42,7 +42,7 @@ mikrotik_hosts:
       - sfp-sfpplus2
       - sfp-sfpplus3
       - sfp-sfpplus4
-  - name: derdriu.home.arpa
+  - name: derdriu.mateu.be
     ifaces:
       - Port1
       - Port2
diff --git a/roles/firewall/templates/firewall.j2 b/roles/firewall/templates/firewall.j2
index 54b4efc..ced4876 100644
--- a/roles/firewall/templates/firewall.j2
+++ b/roles/firewall/templates/firewall.j2
@@ -449,7 +449,7 @@ config rule
 	list proto 'tcp'
 	list proto 'udp'
 	option dest 'lan'
-	option dest_ip '{{ lookup('dig', 'derdriu.home.arpa') }}'
+	option dest_ip '{{ lookup('dig', 'derdriu.mateu.be') }}'
 	option dest_port '161'
 	option target 'ACCEPT'
 	option family 'ipv4'