diff --git a/src/yggdrasil/tcp_linux.go b/src/yggdrasil/tcp_linux.go
index 90a55d7e..7eda3b5e 100644
--- a/src/yggdrasil/tcp_linux.go
+++ b/src/yggdrasil/tcp_linux.go
@@ -15,7 +15,6 @@ func (t *tcp) tcpContext(network, address string, c syscall.RawConn) error {
 	var bbr error
 
 	control = c.Control(func(fd uintptr) {
-		// sys/socket.h: #define	SO_RECV_ANYIF	0x1104
 		bbr = unix.SetsockoptString(int(fd), unix.IPPROTO_TCP, unix.TCP_CONGESTION, "bbr")
 	})