Furthermore, Penttilä and colleagues identified a founder mutation in CHCHD10 (c.197G>T; p.Gly66Val) in 17 Finnish families with late‐onset spinal motor neuropathy (SMAJ) (Penttilä et al, 2015), and this variant is also responsible for Charcot–Marie–Tooth disease type 2 (CMT2) (Auranen et al, 2015). Here, CHCHD10 is linked to Charcot-Marie-Tooth disease type 2.