The aim of the present study was to examine serial visual processing of facial emotion in a group of younger and older adults. Participants performed a visual serial search task in which they searched displays of schematic faces with positive, negative or neutral mouth expressions. Our findings show that older adults did particularly well when detecting positive target faces. Differently, their response times were slower on positive faces compared to negative and neutral faces. Explanations in terms of attentional disengagement mechanisms that may generate an age-related positivity effect are discussed.