Correction for mapping errors in non-null test of aspheric surface W. Weibo, Z. Mengqian, Y. Siwen, F. Zhigang and L. Jian J. Eur. Opt. Soc.-Rapid Publ., 10 (2015) 15032 Published online: 26 June 2015 DOI: 10.2971/jeos.2015.15032