diff --git a/test/packer.js b/test/packer.js
index 401f9c0..e5b6041 100644
--- a/test/packer.js
+++ b/test/packer.js
@@ -23,11 +23,11 @@
 
   var ab = dnsjs.write(json);
   //console.log(ab);
-  var ui8 = new Uint8Array(ab);
   //console.log(ui8);
-  var bytecount = 0;
 
-  function hexdump() {
+  function hexdump(ab) {
+    var ui8 = new Uint8Array(ab);
+    var bytecount = 0;
     var head = '        0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F';
     var trail;
     var str = [].slice.call(ui8).map(function (i) {
@@ -50,14 +50,14 @@
     while (trail.length < 7) {
       trail = '0' + trail;
     }
-    return head + '\n' + str + '\n' + trail
+    return head + '\n' + str + '\n' + trail;
   }
 
   console.log('');
   console.log('DEBUG with hexdump: ');
   console.log('hexdump ' + onefile.replace(/\.[^\.]*$/, '.bin'));
   console.log('');
-  console.log(hexdump(ui8));
+  console.log(hexdump(ab));
   console.log('');
 
   console.error('');