Easy way to make a sprite double sided?

Hi all, I use 2d sprites in my 3d game that cast shadows, however, because the sprite is one sided, It cannot cast shadows when lit from the rear.

Is there a simple way to make the sprite double sided without me having to create two separate objects?

Nevermind, realised I had to turn off backface culling in my shader.

For those ever wanting to do this, use Cull Off in your shader.