Evolution of the NICER and NuSTAR pulse profiles of IGR J17511−3057 as a function of energy. Pulse profiles are generated by folding at different energy ranges after correcting the photon time-of-arrival for the most updated binary ephemerides reported in Table 1. The best-fitting models (red solid lines) are the superposition of up to two harmonically related sinusoidal components. Two cycles of the pulse profile are shown for clarity. The color-coding follows the convention described in Fig. 3.