diff --git a/proxy/vmess.go b/proxy/vmess.go
index 4d2a12e..6b39ccf 100644
--- a/proxy/vmess.go
+++ b/proxy/vmess.go
@@ -40,7 +40,7 @@ type HTTPOptions struct {
 }
 
 func (v Vmess) Identifier() string {
-	return net.JoinHostPort(v.Server, strconv.Itoa(v.Port)) + v.Cipher
+	return net.JoinHostPort(v.Server, strconv.Itoa(v.Port)) + v.Cipher + v.UUID
 }
 
 func (v Vmess) String() string {