It looks like a capital return (reduces your cost base) which is generally not taxed when received (unless your cost base is zero or the capital return pushes your cost base into negative territory in which case it becomes a capital gain) so I would say you can ignore it.
Even if it was a capital gain, I presume you have held this for more than 12 months then you would be entitled to the discount which would mean the $0.67 would be discounted by $0.335 leaving a net capital gain of $0.335 which would be rounded to zero.
I would check with your tax accountant to be certain.
