In the paper, I examine the conditions that are necessary for the correct characterization of the phenomenon of self-deception. Deflationists believe that the phenomenon of self-deception can be characterized as a kind of motivationally biased belief-forming process. They face the selectivity problem according to which the presence of a desire for something to be the case is not enough to produce a self-deceptive belief. Intentionalists argue that the solution to the selectivity problem consists in invoking the notion of intention. According (...) to them, self-deception involves intentional distortion of one's own belief-forming process. In this paper, I defend the claim that intentionalists also face the problem of selectivity. Accordingly, I argue that this objection cannot be used to determine which theory of self-deception is superior. Furthermore, I argue that limiting folk-psychological explanations to reason-based explanations might be responsible for the resilience of the selectivity problem. In that context, as an additional explanatory factor, I emphasize personality traits that, along with motives, play an important role in the psychological explanation of human behavior. In the rest of the paper, I explore how such an expanded view of the folk-psychological explanation can be used to better capture individual cases of self-deception. (shrink)