@ -251,8 +251,8 @@ module.exports = function attachDebugger (screen, connection) {
ctx.stroke()
ctx.beginPath()
ctx.moveTo(0, end * cellSize.height)
ctx.lineTo(width * cellSize.width, end * cellSize.height)
ctx.moveTo(0, (end + 1) * cellSize.height)
ctx.lineTo(width * cellSize.width, (end + 1) * cellSize.height)
ctx.restore()