1 files changed, 1 insertions, 1 deletions
diff --git a/conn.go b/conn.go
index b19a9c2..b8970e7 100644
--- a/conn.go
+++ b/conn.go
@@ -22,7 +22,7 @@ type Bind interface {
 	SetMark(value uint32) error
 	ReceiveIPv6(buff []byte) (int, Endpoint, error)
 	ReceiveIPv4(buff []byte) (int, Endpoint, error)
-	Send(buff []byte, end Endpoint) error
+	Send(buff []byte, end Endpoint, tos byte) error
 	Close() error
 }