diff --git a/xep-0231.xml b/xep-0231.xml
index 0d0dd18d..f31481ea 100644
--- a/xep-0231.xml
+++ b/xep-0231.xml
@@ -24,6 +24,12 @@
   <supersededby/>
   <shortname>NOT_YET_ASSIGNED</shortname>
   &stpeter;
+  <revision>
+    <version>0.3</version>
+    <date>2008-06-18</date>
+    <initials>psa</initials>
+    <remark><p>Allowed inclusion of codecs parameter in type attribute per RFC 4281.</p></remark>
+  </revision>
   <revision>
     <version>0.2</version>
     <date>2008-05-29</date>
@@ -88,7 +94,7 @@
     </tr>
     <tr>
       <td>type</td>
-      <td>The MIME type of the data (e.g., "image/png") as described in &rfc2045;.</td>
+      <td>The MIME type of the data (e.g., "image/png") as described in &rfc2045;. The MIME type SHOULD be as registered in the &ianamedia;. The 'type' attribute MAY include the codecs parameter as specified in &rfc4281;, as shown in the example of the "audio/ogg" media type in the example below.</td>
       <td>REQUIRED</td>
     </tr>
   </table>
@@ -166,7 +172,7 @@
   <uri type='audio/x-wav'>
     http://victim.example.com/challenges/speech.wav?F3A6292C
   </uri>
-  <uri type='audio/ogg-speex'>
+  <uri type='audio/ogg; codecs=speex'>
     http://victim.example.com/challenges/speech.ogg?F3A6292C
   </uri>
   <uri type='audio/mpeg'>
@@ -174,7 +180,7 @@
   </uri>
   <data xmlns='urn:xmpp:tmp:data-element' 
         alt='An audio file'
-        type='audio/x-wav'>
+        type='audio/ogg; codecs=speex'>
     [ ... base64-encoded-audio ... ]
   </data>
 </media>