diff --git a/tcpproxy.go b/tcpproxy.go
index 1f03e32..896e1fd 100644
--- a/tcpproxy.go
+++ b/tcpproxy.go
@@ -223,7 +223,7 @@ func (p *Proxy) serveListener(ret chan<- error, ln net.Listener, routes []route)
 // serveConn runs in its own goroutine and matches c against routes.
 // It returns whether it matched purely for testing.
 func (p *Proxy) serveConn(c net.Conn, routes []route) bool {
-	br := bufio.NewReader(c)
+	br := bufio.NewReaderSize(c, 65536)
 	for _, route := range routes {
 		if target, hostName := route.match(br); target != nil {
 			if n := br.Buffered(); n > 0 {