Fixed amount discount skipping items with special price

Fixed amount discount skipping items with special price

Hello,

I'm trying to create an offer get 10€ if basket > 30€ spent but I want to exclude special prices product. 
So if I have 2 products 15€ each but one has 15€ special price => total eligible is 15€ so offer will not be applied.
If I chose "Fixed amount discount for the whole cart" I don't have in the actions the "skip items with special price" field. 
I tried to add a condition total amount  equals or greater than  30  for a subselection of items in cart matching ALL  of these conditions: 
I also tried the "Fixed price for product set" leaving empty the product set.

Nothing works... Do you have any idea how to do that ?