Comparison of recovered EWs for two absorption lines present in the spectrum of the A-star (solid black line) J1757132. The bottom-left panel shows the profile of the LINE 1 for the original spectrum (solid black), the spectrum with wiggles (dashed), and the spectra corrected using WICKED (red) and with the code by Perna et al. (2023) (yellow). The line profile and EW are better recovered with WICKED than with the code by Perna et al. (2023), with the corrected spectrum having a less than 5% difference with the “true” value derived from the spectrum with no wiggles. For the uncorrected spectrum (gray), we observed EW differences exceeding the typical error (4%) in spectra with S/N as low as 50.