diff --git a/glorytun-udp/init b/glorytun-udp/init
index 5e50d59df..e9f7caf7c 100755
--- a/glorytun-udp/init
+++ b/glorytun-udp/init
@@ -56,11 +56,15 @@ start_instance() {
 
 	_log "starting ${PROG_NAME} ${1} instance $*"
 
+	if [ "$mode" = "to" ]; then
+		bind="bind from addr :: port 5000 to addr $host port $port"
+	else
+		bind="bind from addr $host port $port to addr :: port 5000"
+	fi
 	procd_open_instance
 
 	procd_set_param command ${PROG} \
-		${host:+bind ${mode} addr "$host"} \
-		${port:+port "$port"} \
+		${bind} \
 		${dev:+dev "$dev"} \
 		keyfile /tmp/${PROG_NAME}-${1}.key \
 		persist