diff --git a/codec/mjpeg/utils.go b/codec/mjpeg/utils.go
index 23c0fb3e..511a9da3 100644
--- a/codec/mjpeg/utils.go
+++ b/codec/mjpeg/utils.go
@@ -95,7 +95,7 @@ func (b *byteStream) get8() int {
 }
 
 func (b *byteStream) get16() int {
-	v := int(b.bytes[b.i])<<8 | int(b.bytes[b.i+1])
+	v := int(binary.BigEndian.Uint16(b.bytes[b.i:]))
 	b.i += 2
 	return v
 }