diff --git a/adapter/outbound/trojan.go b/adapter/outbound/trojan.go
index cd1dd28c..f03c3be9 100644
--- a/adapter/outbound/trojan.go
+++ b/adapter/outbound/trojan.go
@@ -57,6 +57,7 @@ func (t *Trojan) plainStream(ctx context.Context, c net.Conn) (net.Conn, error)
 			Port:             port,
 			Path:             t.option.WSOpts.Path,
 			V2rayHttpUpgrade: t.option.WSOpts.V2rayHttpUpgrade,
+			Headers:          http.Header{},
 		}
 
 		if t.option.SNI != "" {
@@ -64,11 +65,9 @@ func (t *Trojan) plainStream(ctx context.Context, c net.Conn) (net.Conn, error)
 		}
 
 		if len(t.option.WSOpts.Headers) != 0 {
-			header := http.Header{}
 			for key, value := range t.option.WSOpts.Headers {
-				header.Add(key, value)
+				wsOpts.Headers.Add(key, value)
 			}
-			wsOpts.Headers = header
 		}
 
 		return t.instance.StreamWebsocketConn(ctx, c, wsOpts)