Renting a flat

Hello, I am now starting the rent of a flat.

I also have 5 rooms like hotel rooms (bed & breakfast).

When I check on Booking as if I were looking for a place to stay for 4 adults (size of my flat) for a period of 7 days, Booking will show to futur clients the price of renting for 2 bedrooms "bed & breakfast" for 7 days (this will look very expensive), and not the flat (which would be more appropriate and less expensive for 4 persons staying 7 days).

Please help !!!