--- a/util/iterators.lua	Fri May 17 08:31:03 2013 +0100
+++ b/util/iterators.lua	Fri May 17 08:42:21 2013 +0100
@@ -75,7 +75,7 @@
 	local x = 0;
 	
 	while true do
-		local var = f(s, var);
+		var = f(s, var);
 	        if var == nil then break; end
 		x = x + 1;
 	end