Chicago Mayor Brandon Johnson accepted many valuable gifts “on behalf of the city” but failed to report them, according to a new report from the city’s inspector general.

According to an advisory from Inspector General Deborah Witzburg, both Johnson and his predecessor, former Chicago Mayor Lori Lightfoot, were not transparent about gifts they received. The city bans public officials from accepting gifts worth more than $50 unless they are accepted “on behalf of the city,” a stipulation that Johnson has been using in his defense.