Dependence of the dust line location on the disk mass in the presence of a strong bump in the gas density at 40 au. The upper plot shows the dust emission profile at λ = 0.87 mm, as predicted by the model. The dust line location, as defined in the text, is highlighted on the profiles. The lower plot shows the surface density distribution of the most emitting grains. The dust line location in the first plot matches the outer edge of the density distribution in the lower plot for the same disk mass.