The patient we present herein is a 6-month-old infant who had erythema and scaling on the central part of the face for 4 months. Both the abundant scaling and the localisation, but also the low age of this infant led to suspect seborrhoeic dermatitis. Direct microscopic examination of scales showed septate hyphae and the cultural examination was also positive for dermatophyte. The found species was Trichophyton mentagrophytes. We describe this patient to highlight the importance of considering tinea faciei in the differential diagnosis of all facial eruptions and the value of mycological examination.