diff --git a/vlib/net/socket_options.c.v b/vlib/net/socket_options.c.v
index 1a32f65a35c9c7..1e8320d6330c93 100644
--- a/vlib/net/socket_options.c.v
+++ b/vlib/net/socket_options.c.v
@@ -19,6 +19,11 @@ pub enum SocketOption {
 	send_timeout     = C.SO_SNDTIMEO
 	socket_type      = C.SO_TYPE
 	ipv6_only        = C.IPV6_V6ONLY
+	ip_proto_ipv6    = C.IPPROTO_IPV6
+	// reuse_port       = C.SO_REUSEPORT // TODO make it work in windows
+	// tcp_fastopen     = C.TCP_FASTOPEN // TODO make it work in windows
+	// tcp_quickack     = C.TCP_QUICKACK // TODO make it work in os != linux
+	// tcp_defer_accept = C.TCP_DEFER_ACCEPT // TODO make it work in windows
 }
 
 pub const opts_bool = [SocketOption.broadcast, .debug, .dont_route, .error, .keep_alive, .oob_inline]
diff --git a/vlib/net/tcp.c.v b/vlib/net/tcp.c.v
index 37bccc58e46735..18743fdd2eda04 100644
--- a/vlib/net/tcp.c.v
+++ b/vlib/net/tcp.c.v
@@ -355,7 +355,7 @@ pub:
 }
 
 pub fn listen_tcp(family AddrFamily, saddr string, options ListenOptions) !&TcpListener {
-	if family != .ip && family != .ip6 {
+	if family !in [.ip, .ip6] {
 		return error('listen_tcp only supports ip and ip6')
 	}
 	mut s := new_tcp_socket(family) or { return error('${err.msg()}; could not create new socket') }
@@ -515,7 +515,7 @@ struct TcpSocket {
 // This is a workaround for issue https://github.com/vlang/v/issues/20858
 // `noline` ensure that in `-prod` mode(CFLAG = `-O3 -flto`), gcc does not generate wrong instruction sequence
 @[noinline]
-fn new_tcp_socket(family AddrFamily) !TcpSocket {
+pub fn new_tcp_socket(family AddrFamily) !TcpSocket {
 	handle := $if is_coroutine ? {
 		socket_error(C.photon_socket(family, SocketType.tcp, 0))!
 	} $else {