diff --git a/transport/vmess/http.go b/transport/vmess/http.go
index 6da9759e..b023fee4 100644
--- a/transport/vmess/http.go
+++ b/transport/vmess/http.go
@@ -3,6 +3,7 @@ package vmess
 import (
 	"bufio"
 	"bytes"
+	"errors"
 	"fmt"
 	"net"
 	"net/http"
@@ -54,6 +55,10 @@ func (hc *httpConn) Write(b []byte) (int, error) {
 		return hc.Conn.Write(b)
 	}
 
+	if len(hc.cfg.Path) == 0 {
+		return -1, errors.New("path is empty")
+	}
+
 	path := hc.cfg.Path[fastrand.Intn(len(hc.cfg.Path))]
 	host := hc.cfg.Host
 	if header := hc.cfg.Headers["Host"]; len(header) != 0 {