--- a/plugins/muc/muc.lib.lua	Wed Aug 01 01:36:22 2012 +0500
+++ b/plugins/muc/muc.lib.lua	Wed Aug 01 01:36:25 2012 +0500
@@ -1149,4 +1149,6 @@
 	}, room_mt);
 end
 
+_M.room_mt = room_mt;
+
 return _M;