diff --git a/app/helpers/orders_helper.rb b/app/helpers/orders_helper.rb
index d1b67932..fff67eff 100644
--- a/app/helpers/orders_helper.rb
+++ b/app/helpers/orders_helper.rb
@@ -37,7 +37,7 @@ module OrdersHelper
   end
   
   def article_price_change_hint(order_article, gross=false)
-    return nil if order_article.article.price == order_article.article_price.price
+    return nil if order_article.article.price == order_article.price.price
     title = "#{t('.old_price')}: #{number_to_currency order_article.article.price}"
     title += " / #{number_to_currency order_article.article.gross_price}" if gross
     "<i class='icon-asterisk' title='#{j title}'></i>".html_safe