--- a/mercurial/keepalive.py	Mon Mar 23 10:48:45 2009 +0100
+++ b/mercurial/keepalive.py	Mon Mar 23 11:12:01 2009 +0100
@@ -408,7 +408,7 @@
                     # close the connection as protocol synchronisation is
                     # probably lost
                     self.close()
-                    raise IncompleteRead(value)
+                    raise httplib.IncompleteRead(value)
                 if chunk_left == 0:
                     break
             if amt is None: