We show that in the P-max extension of a certain Chang-type model of determinacy, if kappa is an element of {omega(1), omega(2), omega(3)}, then the restriction of the club filter on kappa boolean AND Cof(omega) to HOD is an ultrafilter in HOD. This answers Question 4.11 of [O. Ben-Neria and Y. Hayut, On omega-strongly measurable cardinals, Forum Math. Sigma 11 (2023) e19].