Not showing discounted price correctly on category

-- HikaShop version -- : 2.6.1
-- Joomla version -- : 3.4.5
-- PHP version -- : 5.4
-- Browser(s) name and version -- : Chrome Firefox IE

Hi

I created a discount.
I want it to show in both with old and new price in :category and product view
In Display > Default parameters for Product > Show discounted price: Display the price before the discount is applied
On the product page it shows correctly with the old and new price: Check it here
Now to the problem:
On the category page it does not show correctly - it shows the amount of the discount and says: -20€ but I want it to show the old and new price too... how do I achieve that as I can not find this same setting in the Default parameters for categories. Please check it here