Is it legal if case was dismissed (in favor of the tenant) but landlord charged tenants for attorney’s fees?

Landlord filed for eviction. We went to court. First hearing was rescheduled by judge for both parties to settle the disputed amount, the second hearing the judged dismissed the case after all legit and non- questionable charges was paid in full. We stayed at the house until the end of our written contract /lease. Few weeks later, we received a written dismissal of the case from the court. A month later, the landlord is charging us attorney fees. Written contract states that prevailing party will collect interest and or attorney fee’s. In this case (WE) Tenants are the prevailing party. Any legal advice is appreciated. Thanks.