diff --git a/transport/internet/system_listener.go b/transport/internet/system_listener.go
index fa3092a1..7f4d1f0c 100644
--- a/transport/internet/system_listener.go
+++ b/transport/internet/system_listener.go
@@ -88,10 +88,8 @@ func (dl *DefaultListener) Listen(ctx context.Context, addr net.Addr, sockopt *S
 		network = addr.Network()
 		address = addr.String()
 		lc.Control = getControlFunc(ctx, sockopt, dl.controllers)
+		lc.KeepAlive = time.Duration(-1)
 		if sockopt != nil {
-			if sockopt.TcpKeepAliveInterval != 0 || sockopt.TcpKeepAliveIdle != 0 {
-				lc.KeepAlive = time.Duration(-1)
-			}
 			if sockopt.TcpMptcp {
 				lc.SetMultipathTCP(true)
 			}