diff --git a/xep-0231.xml b/xep-0231.xml
index 6e481037..08e22d40 100644
--- a/xep-0231.xml
+++ b/xep-0231.xml
@@ -177,7 +177,7 @@
     to='doctor@shakespeare.lit/pda'
     type='result'>
   <data xmlns='urn:xmpp:bob' 
-        cid='sha1+8f35fef110ffc5df08d579a50083ff9308fb6242@bob.xmpp.org'/>
+        cid='sha1+8f35fef110ffc5df08d579a50083ff9308fb6242@bob.xmpp.org'
         max-age='86400'
         type='image/png'>
     iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAYAAACNMs+9AAAABGdBTUEAALGP
@@ -227,7 +227,7 @@
     <p>The following example illustrates the format (line endings are provided for readability only).</p>
     <example caption='Data element format'><![CDATA[
 <data xmlns='urn:xmpp:bob' 
-      cid='sha1+8f35fef110ffc5df08d579a50083ff9308fb6242@bob.xmpp.org'/>
+      cid='sha1+8f35fef110ffc5df08d579a50083ff9308fb6242@bob.xmpp.org'
       max-age='86400'
       type='image/png'>
   iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAYAAACNMs+9AAAABGdBTUEAALGP