diff -r 715ca17d1260 -r d85d825cbca7 pvl/irker/irc.py
--- a/pvl/irker/irc.py	Sat Jan 12 00:05:22 2013 +0200
+++ b/pvl/irker/irc.py	Sat Jan 12 00:52:11 2013 +0200
@@ -263,6 +263,8 @@
         """
             Format as URL.
         """
+
+        if not self.transport : return 'IRC'
         
         # XXX: no isinstance() support
         if interfaces.ITCPTransport.providedBy(self.transport) :