Pittsburgh mayor Luke Ravenstahl is moving forward with a plan to impose a one percent tax on college tuition, and he’s citing universities’ willingness to gouge their students as justification.

“When you look at some of the fees these places charge,” Ravenstahl told the Pittsburgh Post-Gazette, “we think it’s only fair to include a fee for the city.” Ravenstahl pointed to “charges for everything from athletic facility use to orientation to security,” the paper said.

A member of the Pittsburgh city council has introduced a proposal to charge universities a set amount for city services, but such a scheme would depend on voluntary compliance by the institutions, which is unlikely. Mayor Ravenstahl freely admits that students represent a softer target — as tax exempt institutions, universities are protected from such schemes.