Techniques for protecting wagering game machines from electrostatic discharge are described herein. In some embodiment, a wagering game machine includes a wagering game controller configured to present wagering games upon which monetary value can be wagered. The wagering game machine can also include a button panel that includes a first printed circuit board (PCB) connected to an electrical ground and a second PCB connected to the first PCB by a conductive connector. The button panel can also include a display device connected to the second PCB, an actuator connected to the second PCB, a cap in contact with the actuator, wherein the display device is visible through the cap, and a bezel to retain the cap, where the bezel is coupled to a panel.