In the Reply letter titled “Autosomal Recessive Cerebellar Ataxia 3 Due to Homozygote c.132dupA Mutation Within the ANO10 Gene—Reply” published in the February issue of JAMA Neurology (2015;72[2]:239-240), an error appeared. In the second paragraph, the frequency of autosomal recessive cerebellar ataxia type 3 should have been listed as “higher than 1 in 135 000” instead of “higher than 1 in 135.” This article was corrected online.