diff --git a/player.go b/player.go
index ac6e211..97b303d 100644
--- a/player.go
+++ b/player.go
@@ -47,20 +47,20 @@ func (pt *protoTalker) sender() {
 	log.Printf("%s: spectator sender close", pt.Id)
 }
 
-func (pt *protoTalker) readJSON(buff []byte) (map[string]Instruction, error) {
+func (pt *protoTalker) readJSON() (map[string]Instruction, error) {
 	msg := map[string]Instruction{}
-	n, err := pt.ws.Read(buff)
+	n, err := pt.ws.Read(pt.buff)
 	if err != nil {
 		log.Printf("%s: problem reading from player: %s", pt.Id, err)
 		return nil, err
 	}
 	pt.bw.AddRx <- n
-	if n == len(buff) {
-		errMsg := fmt.Sprintf("%s: read buffer overfull: %s", pt.Id, string(buff))
+	if n == len(pt.buff) {
+		errMsg := fmt.Sprintf("%s: read buffer overfull: %s", pt.Id, string(pt.buff))
 		log.Printf(errMsg)
 		return msg, errors.New(errMsg)
 	}
-	err = json.Unmarshal(buff[:n], &msg)
+	err = json.Unmarshal(pt.buff[:n], &msg)
 	if err != nil {
 		log.Printf("%s: problem reading from player: %s", pt.Id, err)
 		return nil, err
@@ -83,7 +83,7 @@ func NewPlayer(id string, ws *websocket.Conn, bw *bandwidth.Bandwidth) *player {
 
 func (p *player) recv() {
 	for {
-		msgs, err := p.readJSON(p.buff)
+		msgs, err := p.readJSON()
 		if err != nil {
 			log.Printf("%s: %s", p.Id, err)
 			break
@@ -164,7 +164,7 @@ func NewSpectator(id string, ws *websocket.Conn, bw *bandwidth.Bandwidth) *Spect
 
 func (s *Spectator) recv() {
 	for {
-		_, err := s.readJSON(s.buff)
+		_, err := s.readJSON()
 		if err != nil {
 			log.Printf("%s: %s", s.Id, err)
 			break