--- a/lucene/src/luan/modules/lucene/Lucene.luan	Mon May 25 22:19:18 2015 -0600
+++ b/lucene/src/luan/modules/lucene/Lucene.luan	Tue May 26 02:05:22 2015 -0600
@@ -120,9 +120,10 @@
 		for _, f in ipairs(fields) do
 			f.field or error "missing sort field"
 			f.type or error "missing sort type"
+			local field = index.map_field_name(f.field)
 			local type = SortField.Type.valueOf( f.type.upper() )
 			local reverse = f.reverse or false
-			a[#a+1] = SortField.new(f.field,type,reverse)
+			a[#a+1] = SortField.new(field,type,reverse)
 		end
 		return Sort.new(Table.unpack(a))
 	end