Error in fluidsim.solvers.ns3d.strat.output.spectra

I think there is an error in the definition of the kinetic energy spectra in dict_spectra3d (https://fluidsim.readthedocs.io/en/latest/_modules/fluidsim/solvers/ns3d/strat/output/spectra.html#SpectraNS3DStrat):

dict_spectra3d = {
            "vx": s_vx,
            "vy": s_vy,
            "vz": s_vz,
            "E": s_vx + s_vy + s_vy, # error: should be replaced by "E": s_vx + s_vy + s_vz,
            "A": s_A,
            "Khr": s_Khr,
            "Khd": s_Khd,
        }