diff --git a/templates/ndppd.conf.j2 b/templates/ndppd.conf.j2
index 9396219..ef007ab 100644
--- a/templates/ndppd.conf.j2
+++ b/templates/ndppd.conf.j2
@@ -1,6 +1,6 @@
 proxy {{ ansible_default_ipv6.interface }}{
 {% for peer in wireguard_peers %}
-{% for ip6_addr in peer.allowedips | ipv6 %}
+{% for ip6_addr in peer.allowedips | ansible.utils.ipv6 %}
   rule {{ ip6_addr }} {
     static
   }