Minimum Order can be adjusted in Cart

I have a category of products where the minimum order number of each item is 5.
But in the Minicart as well as the Checkout page the number of items can be set under that minimum. Am I missing something or doing something wrong?

Example is here:
www.broodjes2day.nl/index.php/online-bes...iment-bestellen.html

Could you try to add the line:
if($product->product_min_per_order>0 && $product->product_min_per_order>$quantity) $quantity = $product->product_min_per_order;

before the line:
if($product->product_max_per_order>0 && $product->product_max_per_order<$quantity) $quantity = $product->product_max_per_order;

in the file administrator/components/com_hikashop/classes/cart.php and try again ?

Thank you so much. That works!