WARNING: This page is about a different car, the 2008 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Chamber Retainer, Washer And Parking Brake Operating Lever
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Use pliers or a similar tool to close the chamber retainer end onto the pin.