Two recent decisions by the European Court of Justice (Airbnb Ireland and Cali Apartments) nourish the debate on the regulation of peer-to-peer lodging services. Several Airbnb’s hosts make use of short-time rentals to disguise a professional activity. In this manner they circumvent the administrative and tax rules applied to the traditional lodging industry and gain an unlawful competitive advantage over traditional hotels and b&b. As a consequence, the lodging industry associations ask for the adoption of rules aimed at preventing unfair competition by hosts. Yet, in regulating peer-to-peer lodging services the EU Member States must come to terms with the EU rules on the freedom to provide services within a legal framework that is all but clear. A modernization of the EU rules is thus needed.