Correction to: Fundamental parameters for 45 open clusters with Gaia DR2, an improved extinction correction and a metallicity gradient prior.

This document is a correction to a previous paper published in the Monthly Notices of the Royal Astronomical Society. The original paper contained incorrect values in table 1, which could lead to incorrect results if used to correct Gaia DR2 data for extinction. The correct values, based on a grid of Kurucz model spectra, the extinction law of Fitzpatrick et al., and the revised Gaia DR2 photometric passbands, have been made available. The authors confirm that the conclusions of the original paper remain unchanged. [Extracted from the article]