A lockout device for a round baler. The lockout device has a body configured for being connected to a side of the tailgate of the round baler, a handle pivotally connected to the body at a pivot point, a wedge pivotally connected to the body at the same pivot point, and a biasing member connected in between the handle and the wedge. The handle is configured for pivoting in between a closed position and an open position for pivoting the wedge to be at least partially within the bale chamber to lock out the bale chamber.