 
 		# On click/touch of the slider, update the value
 		@on(Events.TouchStart, @_touchDown)
+		@sliderOverlay.on(Events.TouchStart, @_touchDown)
 
 	_touchDown: (event) =>
 		event.preventDefault()

		if @width > @height
			@fill.height = @height
			@knob.centerY()
		else
			@fill.width = @width
			@knob.centerX()

	_setRadius: =>
		radius = @borderRadius
		@fill.style.borderRadius = "#{radius}px 0 0 #{radius}px"

	@define "bounded", @simpleProperty("bounded", false)


		else
			@fill.width = @width

		# Link knobOverlay to knob
		@knobOverlay.on Events.Move, ->
			if @width > @height
				@knob.x = @x
			else
				@knob.y = @y

		@fill.borderRadius = @sliderOverlay.borderRadius = @borderRadius

		@knob.draggable.enabled = true
		@knob.draggable.overdrag = false
