I have a T4PS slip which included capital gains. Do I also need to fill in a T5008 for this transaction? Would I be double counting the capital gains by doing both forms?

I sold all of my shares in my employee profit sharing plan in 2017 and received a T4PS, which included capital gains in box 34.  Do I also need to fill in a T5008 for the same transaction?  It seems that if I list the transaction in a T5008 as a capital gain, I may be double counting and hence paying too much in capital gains tax.