diff --git a/roles/dns/master/defaults/main.yml b/roles/dns/master/defaults/main.yml
index 745b249..f992033 100644
--- a/roles/dns/master/defaults/main.yml
+++ b/roles/dns/master/defaults/main.yml
@@ -23,5 +23,6 @@ expire: 3600000
 ttl: "{{ global_dns_ttl }}"
 
 slaves: [] # for retriving IPs automatically by Ansible
+slaves_ip: []
 
 dname_subdomain: "external" # Must not contain the base domain, can be used to allow ignoring local overrides on purpose, will be ignored if empty
diff --git a/roles/dns/master/templates/zone.conf b/roles/dns/master/templates/zone.conf
index 01c55bf..502e09d 100644
--- a/roles/dns/master/templates/zone.conf
+++ b/roles/dns/master/templates/zone.conf
@@ -36,11 +36,17 @@ zone "{{ domain }}" {
     {{ hostvars[fqdn].ansible_default_ipv4.address }};
     {{ hostvars[fqdn].ansible_default_ipv6.address }};
     {% endfor %}
+    {% for ip in slaves_ip %}
+    {{ ip }};
+    {% endfor %}
   };
   also-notify {
     {% for fqdn in slaves %}
     {{ hostvars[fqdn].ansible_default_ipv4.address }};
     {{ hostvars[fqdn].ansible_default_ipv6.address }};
     {% endfor %}
+    {% for ip in slaves_ip %}
+    {{ ip }};
+    {% endfor %}
   };
 };