--- a/mod_bidi/mod_bidi.lua	Wed Jan 16 08:33:20 2013 +0100
+++ b/mod_bidi/mod_bidi.lua	Wed Jan 16 08:33:56 2013 +0100
@@ -13,6 +13,7 @@
 local xmlns_bidi = "urn:xmpp:bidi";
 local noop = function () end
 local core_process_stanza = prosody.core_process_stanza;
+local traceback = debug.traceback;
 
 local function handleerr(err) log("error", "Traceback[s2s]: %s: %s", tostring(err), traceback()); end
 local function handlestanza(session, stanza)