diff --git a/common/link/shadowsocks.go b/common/link/shadowsocks.go
index 1f5d7a05..af157e1e 100644
--- a/common/link/shadowsocks.go
+++ b/common/link/shadowsocks.go
@@ -5,6 +5,7 @@ import (
 	"strconv"
 	"strings"
 
+	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing/common"
 	E "github.com/sagernet/sing/common/exceptions"
@@ -37,7 +38,7 @@ type ShadowSocks struct {
 // Options implements Link
 func (l *ShadowSocks) Options() *option.Outbound {
 	return &option.Outbound{
-		Type: "shadowsocks",
+		Type: C.TypeShadowsocks,
 		Tag:  l.Ps,
 		ShadowsocksOptions: option.ShadowsocksOutboundOptions{
 			ServerOptions: option.ServerOptions{
diff --git a/common/link/vmess.go b/common/link/vmess.go
index ca572541..2fa3b59e 100644
--- a/common/link/vmess.go
+++ b/common/link/vmess.go
@@ -23,7 +23,7 @@ type Vmess struct {
 // Options implements Link
 func (v *Vmess) Options() *option.Outbound {
 	out := &option.Outbound{
-		Type: "vmess",
+		Type: C.TypeVMess,
 		Tag:  v.Tag,
 		VMessOptions: option.VMessOutboundOptions{
 			ServerOptions: option.ServerOptions{
@@ -38,6 +38,7 @@ func (v *Vmess) Options() *option.Outbound {
 
 	if v.TLS {
 		out.VMessOptions.TLS = &option.OutboundTLSOptions{
+			Enabled:    true,
 			Insecure:   v.TLSAllowInsecure,
 			ServerName: v.Host,
 		}