diff --git a/setup/dns.sh b/setup/dns.sh
index f2ad3a49..c0d2fb72 100755
--- a/setup/dns.sh
+++ b/setup/dns.sh
@@ -42,7 +42,7 @@ EOF
 # DNS queries that require a recursive nameserver, and the system
 # might have other network interfaces for e.g. tunnelling, we have
 # to be specific about the network interfaces that nsd binds to.
-for ip in $PRIVATE_IP $PRIVATE_IPV6; do
+for ip in $PUBLIC_IP $PUBLIC_IPV6; do
 	echo "  ip-address: $ip" >> /etc/nsd/nsd.conf;
 done