Superannuation is not usually included in your Will because your super is held in a trust by the trustee of your super fund and, technically, is not an asset that you in fact and in law own.
You need to ensure your super fund is kept up-to-date with instructions as to what you would like to happen to your funds in the event of your death.
A binding nomination instructs your super fund who you want your super to be paid to in the event of your death. If you make a binding nomination, your super fund will pay your account balance to whoever you’ve nominated, as long as your nomination is valid and in force at the time of your death.