diff --git a/openwrt/openwrt-add-jool-ipv4island.sh b/openwrt/openwrt-add-jool-ipv4island.sh
index 0f1d75b..cac2a24 100755
--- a/openwrt/openwrt-add-jool-ipv4island.sh
+++ b/openwrt/openwrt-add-jool-ipv4island.sh
@@ -4,7 +4,6 @@ if [ $# -ne 3 ]; then
     echo "$0 ip-address nat64-prefix"
     echo "    ip-address: where to find the OpenWRT device"
     echo "    nat64-prefix: which network to use for INCOMING NAT64 (often 2a0a:e5c1:XXX:b00::/96"
-    echo "    ip4-address: where to map ipv6 traffic to (often: 192.168.1.42)"
     exit 1
 fi
 
@@ -22,7 +21,6 @@ cat > /etc/rc.local << EO2
 
 modprobe jool
 
-jool -4 -a ${v4addr}
 jool -6 ${nat64_prefix}
 EO2