Opposition leader Winne Kiiza hints at a possibility of going to court to challenge the decision.
Uganda's parliamentary opposition leader Winnie Kiiza says she will challenge the age limit law passed Wednesday night.
MPs approved a constitutional change which would remove the age limit of 75 for presidential candidates.
The change allows the current president, 73-year-old Yoweri Museveni, to run for an unprecedented sixth term in office.
Ms Kiiza did not specify how exactly the opposition would challenge the decision, although she hinted at a possibility of going to court.
Her objections included:
MP Mbwaketamwa Gaffa is one of 19 MPs who chose to vote against the law. He explained his complaints to BBC:
"What we (MPs) did yesterday is real raping the constitution in favour of one person; President Museveni. Ugandans are so bitter. When the president ascents to the bill, it might be legal, but it will be illegitimate, and we are going to challenge it."