diff --git a/app/models/line_item_decorator.rb b/app/models/line_item_decorator.rb
index 19a50c0..9935eb8 100644
--- a/app/models/line_item_decorator.rb
+++ b/app/models/line_item_decorator.rb
@@ -21,6 +21,7 @@ def amount_with_volume_discount
     amount_without_volume_discount + self.volume_discount
   end
   alias_method_chain :amount, :volume_discount
+  alias total amount
 
   private
   def check_update_volume_discount