diff --git a/usr.sbin/unbound/local-setup/local-unbound-setup.sh b/usr.sbin/unbound/local-setup/local-unbound-setup.sh
index 837cf9a1914..a16e6d05a65 100755
--- a/usr.sbin/unbound/local-setup/local-unbound-setup.sh
+++ b/usr.sbin/unbound/local-setup/local-unbound-setup.sh
@@ -178,7 +178,7 @@ gen_forward_conf() {
 	echo "forward-zone:"
 	echo "        name: ."
 	for forwarder ; do
-		if expr "${forwarder}" : "^[0-9:.]\{1,\}$" >/dev/null ; then
+		if expr "${forwarder}" : "^[0-9A-Fa-f:.]\{1,\}$" >/dev/null ; then
 			echo "        forward-addr: ${forwarder}"
 		else
 			echo "        forward-host: ${forwarder}"