diff --git a/xep-0158.xml b/xep-0158.xml
index f396cc70..53d72825 100644
--- a/xep-0158.xml
+++ b/xep-0158.xml
@@ -405,7 +405,7 @@
   <query xmlns='jabber:iq:register'>
     <x xmlns='jabber:x:data' type='form'>
       <field type='hidden' var='FORM_TYPE'>
-        <value>urn:xmpp:captcha</value>
+        <value>jabber:iq:register</value>
       </field>
       <field type='hidden' var='challenge'><value>F3A6292C</value></field>
       <field type='hidden' var='sid'><value>reg1</value></field>
@@ -442,7 +442,7 @@
   <query xmlns='jabber:iq:register'>
     <x xmlns='jabber:x:data' type='submit'>
       <field var='FORM_TYPE'>
-        <value>urn:xmpp:captcha</value>
+        <value>jabber:iq:register</value>
       </field>
       <field var='challenge'><value>F3A6292C</value></field>
       <field var='sid'><value>reg1</value></field>