diff --git a/roles/nameserver/templates/unbound_network.conf.j2 b/roles/nameserver/templates/unbound_network.conf.j2
index bc54174..0f349bf 100644
--- a/roles/nameserver/templates/unbound_network.conf.j2
+++ b/roles/nameserver/templates/unbound_network.conf.j2
@@ -9,7 +9,7 @@ server:
         interface: 127.0.0.53
         interface: ::1
         outgoing-interface: {{ ansible_default_ipv4.address }}
-        {% if ansible_default_ipv6 is defined %}
+        {% if ansible_default_ipv6.address is defined %}
         outgoing-interface: {{ ansible_default_ipv6.address }}
         {% endif %}
         access-control: 192.168.1.0/24 allow