diff --git a/xep-0087.xml b/xep-0087.xml
index 8b4f328c..b812c5de 100644
--- a/xep-0087.xml
+++ b/xep-0087.xml
@@ -206,7 +206,7 @@
     <![CDATA[
     <iq type='result' to='sender@jabber.org/resource' id='offer1'>
       <si
-        xmlns='http://jabber.org/si'
+        xmlns='http://jabber.org/protocol/si'
         id='a0'>
         <feature xmlns='http://jabber.org/protocol/feature-neg'>
           <x xmlns='jabber:x:data' type='submit'>