Correction for 'Exploring the 3D structure and defects of a self-assembled gold mesocrystal by coherent X-ray diffraction imaging' by Jerome Carnis et al., Nanoscale, 2021, DOI: 10.1039/D1NR01806J. The authors regret that the original article contained some errors in the main text and in the captions of Fig. 1 and 3. In section 4.3 of the original article, the sentence "The polymer tip was fixed on a rotation stage around the vertical axis z."should read "The polymer tip was fixed on a rotation stage around the vertical axis.". Fig. 1 and 3 are displayed below with the updated captions.