Examples of the results obtained with the normalisation procedure used for processing the spectra of the Gaia-ESO survey. The top four panels show a typical spectrum (star 13011600-4101507), while the bottom four panels show one of the cases (star 1103495-7700101) when our procedure does not perform efficiently. The continuous red lines overplotted on the spectra before the normalisation show the profile of the continuum calculated by the pipeline, while the vertical dashed lines indicate the wavelength intervals masked to avoid overnormalisation of strong lines.