  The relation between the halo field and the matter fluctuations (halo bias),
in the presence of massive neutrinos depends on the total neutrino mass,
massive neutrinos introduce an additional scale-dependence of the bias which is
usually neglected in cosmological analyses. We investigate the magnitude of the
systematic effect on interesting cosmological parameters induced by neglecting
this scale dependence, finding that while it is not a problem for current
surveys, it is non-negligible for future, denser or deeper ones depending on
the neutrino mass, the maximum scale used for the analyses and the details of
the nuisance parameters considered. However there is a simple recipe to account
for the bulk of the effect as to make it fully negligible, which we illustrate
and advocate should be included in analysis of forthcoming large-scale
structure surveys.
