Top panel: X-ray spectrum of IGR J17511–3057 observed by the EPIC-pn (blue points), RGS1 (red points), and RGS2 (green points) during the XMM-Newton observation. Spectra were rebinned for graphical purposes. Bottom and middle panels: residuals with respect to the model listed in the central column of Table 2 (see text for details), with and without the addition of an emission line centred at keV to the model, respectively.