My aim in this paper is to show an inconsistency in Umberto Eco's semantic of fictional names as presented in his latest book: Confessions of a Young Novelist. To prepare the ground for my intervention, I first of all give a summary of Kripke's view on proper and fictional names, then I retrieve and record Ibn-Sina's view on proper names as purely denotative and his version of so-called causal theory of proper names. At the end I show, hopefully, a way out of Eco's seemingly conflicting views.