I'm using a Toolbar in place of the action bar, and I'd like to continue to use the default Up icon for my toolbar. I believe it's the ic\_menu\_back drawable. This resource seems to be private, however, as I can't access it through android.R.drawable.ic\_menu\_back. 

Do I have to extract this image and put it into my drawables folder manually, or is there a way I can just force the Toolbar to use the default Up button?