--- a/mod_carbons/mod_carbons.lua	Thu Aug 27 12:16:39 2015 +0200
+++ b/mod_carbons/mod_carbons.lua	Thu Aug 27 12:17:12 2015 +0200
@@ -9,7 +9,7 @@
 local xmlns_carbons_old = "urn:xmpp:carbons:1";
 local xmlns_carbons_really_old = "urn:xmpp:carbons:0";
 local xmlns_forward = "urn:xmpp:forward:0";
-local full_sessions, bare_sessions = full_sessions, bare_sessions;
+local full_sessions, bare_sessions = prosody.full_sessions, prosody.bare_sessions;
 
 local function toggle_carbons(event)
 	local origin, stanza = event.origin, event.stanza;