diff --git a/codec/mjpeg/jpeg.go b/codec/mjpeg/jpeg.go
index 582594ec..52d68418 100644
--- a/codec/mjpeg/jpeg.go
+++ b/codec/mjpeg/jpeg.go
@@ -264,7 +264,7 @@ func writeHeader(p *putBuffer, _type, width, height, nbqTab, dri int, qtable []b
 	mark(p, codeAPP0)
 	p.put16(16)
 	const jfifLabel = "JFIF\000"
-	p.putBuf([]byte(jfifLabel))
+	p.putBytes([]byte(jfifLabel))
 	p.put16(0x0201)
 	p.put8(0)
 	p.put16(1)
@@ -288,7 +288,7 @@ func writeHeader(p *putBuffer, _type, width, height, nbqTab, dri int, qtable []b
 
 	for i := 0; i < nbqTab; i++ {
 		p.put8(uint8(i))
-		p.putBuf(qtable[64*i : (64*i)+64])
+		p.putBytes(qtable[64*i : (64*i)+64])
 	}
 
 	// Define huffman table.
@@ -361,8 +361,8 @@ func writeHuffman(p *putBuffer, class, id int, bits, values []byte) {
 		n += int(bits[i])
 	}
 
-	p.putBuf(bits[1:17])
-	p.putBuf(values[0:n])
+	p.putBytes(bits[1:17])
+	p.putBytes(values[0:n])
 }
 
 // defaultQTable returns a default quantization table.
diff --git a/codec/mjpeg/utils.go b/codec/mjpeg/utils.go
index 12ff01ea..004b7903 100644
--- a/codec/mjpeg/utils.go
+++ b/codec/mjpeg/utils.go
@@ -58,7 +58,7 @@ func (p *putBuffer) put8(v uint8) {
 	p.len++
 }
 
-func (p *putBuffer) putBuf(src []byte) {
+func (p *putBuffer) putBytes(src []byte) {
 	copy(p.bytes[p.len:], src)
 	p.len += len(src)
 }