In the article “Novel CLN3 mutation causing autophagic vacuolar myopathy” by A. Cortese et al. (Neurology® 2014;82:2072–2076), there is an error in the Results regarding the ASPHD1 variant. The ASPHD1 variant should have been described as a duplication: c.513_515dup resulting in p.(Gly172dup), which might retain some functionality (this is a known issue with the software used to annotate the variants in the whole exome sequencing data). The authors regret the error.