--- a/jingle-ibb/ibb.h	Sun Jul 25 02:03:58 2010 +0200
+++ b/jingle-ibb/ibb.h	Mon Jul 26 01:17:48 2010 +0200
@@ -4,6 +4,8 @@
 #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 2048
+
 typedef struct {
   /* Size of the blocks */
   int blocksize;