diff --git a/app/models/list.rb b/app/models/list.rb
index dc6229ab..769f891a 100644
--- a/app/models/list.rb
+++ b/app/models/list.rb
@@ -295,9 +295,10 @@ class List
     orders_placed_count = supplier.increment_orders_placed_count!
     loaded_products = self.class.database.load_document products.keys
     products.each do |product_id, quantity|
-      quantity = quantity.to_i
       product = loaded_products.find{|p| p.id == product_id} # to get the price
-      ProductOrder.create order: order, product_id: product_id, quantity: quantity, price: product.price, product_name: product.name if quantity > 0
+      if quantity.to_i > 0
+        ProductOrder.create(order: order, product_id: product_id, quantity: quantity, price: product.price, product_name: product.name)
+      end
     end
     set_price
     save