--- a/jingle-ibb/ibb.h	Mon Aug 16 02:55:00 2010 +0200
+++ b/jingle-ibb/ibb.h	Mon Aug 16 02:56:46 2010 +0200
@@ -4,7 +4,7 @@
 #define NS_JINGLE_TRANSPORT_IBB "urn:xmpp:jingle:transports:ibb:0"
 #define NS_TRANSPORT_IBB "http://jabber.org/protocol/ibb"
 
-#define IBB_BLOCK_SIZE_MAX 8192
+#define IBB_BLOCK_SIZE_MAX 4096
 
 typedef struct {
   /* Size of the blocks */