We show our estimate of quasar bias as a function of z and absolute magnitude. We include our measurement of bias from the BOSS survey, Eftekharzadeh et al. (2015). We show the evolution for a halo of mass 2 × 10¹² h⁻¹ M_⊙ as the solid grey line. We see that our measurements of bias are consistent with quasars inhabiting the same mass haloes irrespective of magnitude or redshift. We include the 2QZ bias result (equation 4) as a black dashed line and our bias result (equation 12) as a dotted black line for comparison.