The 34-year-old had been left out of the initial Dutch party as coach Dick Advocaat left him on the standby list.
But an Achilles injury to PSV star Mark van Bommel means Bosvelt will be needed in Portugal after all.
The Dutch beat the Faroe Islands 3-0 on Tuesday and face the Republic of Ireland on Saturday.
The Amsterdam friendly is their last warm-up game so Bosvelt may feature to help him sharpen his fitness.