diff --git a/xep-0405.xml b/xep-0405.xml
index c9886d31..503d0cb2 100644
--- a/xep-0405.xml
+++ b/xep-0405.xml
@@ -38,6 +38,12 @@
   <shortname>MIX-PAM</shortname>
   &ksmithisode;
   &skille;
+  <revision>
+    <version>0.5.2</version>
+    <date>2021-07-02</date>
+    <initials>lnj</initials>
+    <remark><p>Fix wrong mix presence extension namespace in examples</p></remark>
+  </revision>
   <revision>
     <version>0.5.1</version>
     <date>2020-11-03</date>
@@ -456,7 +462,7 @@ This approach  enables flexible support of multiple clients for a MIX channel pa
 <presence from='123435#coven@mix.shakespeare.example/UUID-a1j/7533'
           to='hag99@shakespeare.example'
           id='77E07BB0-55CF-4BD4-890E-3F7C0E686BBD'>
-  <mix xmlns='urn:xmpp:presence:0'>
+  <mix xmlns='urn:xmpp:mix:presence:0'>
      <jid>hecate@shakespeare.example/UUID-x4r/2491</jid>
      <nick>thirdwitch</nick>
   </mix>
@@ -470,7 +476,7 @@ This approach  enables flexible support of multiple clients for a MIX channel pa
 <presence from='123435#coven@mix.shakespeare.example/UUID-a1j/7533'
           to='hag99@shakespeare.example/UUID-rrr/1234'
           id='77E07BB0-55CF-4BD4-890E-3F7C0E686BBD'>
-  <mix xmlns='urn:xmpp:presence:0'>
+  <mix xmlns='urn:xmpp:mix:presence:0'>
      <jid>hecate@shakespeare.example/UUID-x4r/2491</jid>
      <nick>thirdwitch</nick>
   </mix>