diff --git a/app/models/sale.rb b/app/models/sale.rb
index 32d0b994..8390c981 100644
--- a/app/models/sale.rb
+++ b/app/models/sale.rb
@@ -129,7 +129,7 @@ class Sale < ApplicationRecord
 
       #compute sales summary
       if order_source.nil?
-        order_source = order.order_source
+        order_source = order.source
       end
       compute(order_source)