diff --git a/cmd/mjpeg-player/lex-mjpeg.js b/cmd/mjpeg-player/lex-mjpeg.js
index 4d5be7e9..222fa945 100644
--- a/cmd/mjpeg-player/lex-mjpeg.js
+++ b/cmd/mjpeg-player/lex-mjpeg.js
@@ -1,12 +1,9 @@
 /*
-NAME
-  lex-mjpeg.js
-
 AUTHOR
   Trek Hopton <trek@ausocean.org>
 
 LICENSE
-  This file is Copyright (C) 2019 the Australian Ocean Lab (AusOcean)
+  This file is Copyright (C) 2020 the Australian Ocean Lab (AusOcean)
 
   It is free software: you can redistribute it and/or modify them
   under the terms of the GNU General Public License as published by the
@@ -24,11 +21,14 @@ LICENSE
 
 // MJPEGLexer lexes a byte array containing MJPEG into individual JPEGs.
 class MJPEGLexer {
-    constructor(src) {
-        this.src = src;
+    constructor() {
         this.off = 0;
     }
 
+    append(data) {
+        this.src = new Uint8Array(data);
+    }
+
     // read returns the next single frame.
     read() {
         // Check if the src can contain at least the start and end flags (4B).