--- a/midi/specification.html	Tue Jun 05 13:56:15 2012 +0300
+++ b/midi/specification.html	Tue Jun 05 13:58:25 2012 +0300
@@ -476,7 +476,7 @@
       <dl title="[NoInterfaceObject]
                  interface MIDIMessage"
           class="idl">
-        <dt>readonly attribute DOMHighResTimeStamp timestamp</dt>
+        <dt>attribute DOMHighResTimeStamp timestamp</dt>
         <dd>
           <p>
             A <code>DOMHighResTimeStamp</code> signifying when the event