An important part of Franz Brentano’s claim to philosophical fame is condensed in the slogan ‘Intentionality is the mark of the mental’. Physical phenomena are phenomena that lack intentionality, mental those that have it. In this essay I will side with critics of this mark of the mental. However, Brentano offered several marks of the mental, intentionality being only one. I will argue that a different Brentanian mark of the mental, unity of consciousness, is more promising than intentionality.