--- a/plugins/muc/mod_muc.lua	Mon Apr 28 16:31:21 2014 -0400
+++ b/plugins/muc/mod_muc.lua	Tue Apr 29 12:54:04 2014 -0400
@@ -136,7 +136,7 @@
 
 module:hook("muc-occupant-left",function(event)
 	local room = event.room
-	if not next(room._occupants) and not persistent.get(room) then -- empty, non-persistent room
+	if not room:has_occupant() and not persistent.get(room) then -- empty, non-persistent room
 		module:fire_event("muc-room-destroyed", { room = room });
 	end
 end);