diff -r 328bde72a844 -r 830701cec96f libpurple/protocols/jabber/disco.c
--- a/libpurple/protocols/jabber/disco.c	Fri Sep 05 12:07:37 2008 +0000
+++ b/libpurple/protocols/jabber/disco.c	Sat Sep 06 07:49:05 2008 +0000
@@ -132,9 +132,7 @@
 			SUPPORT_FEATURE("http://jabber.org/protocol/bytestreams")
 			SUPPORT_FEATURE("http://jabber.org/protocol/disco#info")
 			SUPPORT_FEATURE("http://jabber.org/protocol/disco#items")
-#if 0
-				SUPPORT_FEATURE("http://jabber.org/protocol/ibb")
-#endif
+			SUPPORT_FEATURE("http://jabber.org/protocol/ibb");
 			SUPPORT_FEATURE("http://jabber.org/protocol/muc")
 			SUPPORT_FEATURE("http://jabber.org/protocol/muc#user")
 			SUPPORT_FEATURE("http://jabber.org/protocol/si")
@@ -273,6 +271,10 @@
 				else if(!strcmp(var, "http://jabber.org/protocol/commands")) {
 					capabilities |= JABBER_CAP_ADHOC;
 				}
+				else if(!strcmp(var, "http://jabber.org/protocol/ibb")) {
+					purple_debug_info("jabber", "remote supports IBB\n");
+					capabilities |= JABBER_CAP_IBB;
+				}
 			}
 		}