--- src/java/org/jivesoftware/openfire/server/ServerDialback.java.orig	2013-06-11 09:18:37.000000000 +0200
+++ src/java/org/jivesoftware/openfire/server/ServerDialback.java	2013-06-11 09:19:07.000000000 +0200
@@ -236,8 +236,7 @@
             stream.append(" xmlns=\"jabber:server\"");
             stream.append(" to=\"").append(remoteDomain).append("\"");
             stream.append(" from=\"").append(localDomain).append("\"");
-            stream.append(" xmlns:db=\"jabber:server:dialback\"");
-            stream.append(" version=\"1.0\">");
+            stream.append(" xmlns:db=\"jabber:server:dialback\">");
             connection.deliverRawText(stream.toString());
 
             // Set a read timeout (of 5 seconds) so we don't keep waiting forever