diff --git a/stream/mts/encoder.go b/stream/mts/encoder.go
index e921248f..57422a3f 100644
--- a/stream/mts/encoder.go
+++ b/stream/mts/encoder.go
@@ -86,7 +86,7 @@ type Encoder struct {
 	frameInterval time.Duration
 	ptsOffset     time.Duration
 	tsSpace       [PktLen]byte
-	pesSpace      [pes.MaxPesSize]byte
+	pesSpace      [pes.MaxPesLen]byte
 
 	psiCount int
 
diff --git a/stream/mts/pes/pes.go b/stream/mts/pes/pes.go
index c74a2889..fb0878db 100644
--- a/stream/mts/pes/pes.go
+++ b/stream/mts/pes/pes.go
@@ -28,7 +28,7 @@ package pes
 
 import ()
 
-const MaxPesSize = 10000
+const MaxPesLen = 10000
 
 /*
 The below data struct encapsulates the fields of an PES packet. Below is
@@ -95,8 +95,8 @@ type Packet struct {
 }
 
 func (p *Packet) Bytes(buf []byte) []byte {
-	if buf == nil || cap(buf) != MaxPesSize {
-		buf = make([]byte, 0, MaxPesSize)
+	if buf == nil || cap(buf) != MaxPesLen {
+		buf = make([]byte, 0, MaxPesLen)
 	}
 	buf = buf[:0]
 	buf = append(buf, []byte{