A clamping device for keeping conventionally tied shoe laces from becoming untied. The device has a top frame that contacts the top of the shoe laces and a bottom frame that contacts the bottom of the shoe laces. These two frames clamp the lace on both sides of a conventionally tied shoe lace knot and are connected by a hinge. The two frames are secured together by a latch. This device secures both the lace tension on the shoe and the knot.