Corrected version of Fig. 12 in Henneco et al. (2024): PDF of contact systems formed in Case-A binaries with M_1,  i = 4.8 − 20.8 M_⊙ (this mass range was incorrectly stated as M_1,  i = 7.9 − 20.8 M_⊙ in the original version of this figure) as a function of the mass ratio q at the onset of contact. Data points (filled squares) show the observed mass ratio and primary mass (right axis) for all observed Milky Way (MW) and Large and Small Magellanic Cloud (LMC and SMC) contact and near-contact systems from Ostrov (2001), Harries et al. (2003), Hilditch et al. (2005), Mahy et al. (2020), and Janssens et al. (2021), as compiled in Menon et al. (2021), including the uncertainties on their values. Systems without reported uncertainties on q are indicated with a dash symbol, and those without reported uncertainties on q and M₁ are indicated with a star symbol. We also note that the range in PDF values (y-axis) has changed compared to the original figure due to a previous incorrect normalisation.