MANILA -- Cultural activist Carlos Celdran said Friday serving jail time for staging a one-man protest inside the Manila Cathedral in 2010 will be "worth it."

The Supreme Court this week affirmed Celdran's sentence of 2 and a half months to 1 year for holding a placard with the word "Damaso" at the famed church to protest the clergy's stand on reproductive health.

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Padre Damaso is a character in Jose Rizal's Noli me Tangere novel that symbolized church meddling in state affairs during the Spanish colonization.

"That particular protest action, that particular art intervention I did inside the church kind of snowballed the movement for the Reproductive Health bill," Celdran told ANC's Early Edition.

The Reproductive Health Law was enacted 4 years after Celdran's stunt, guaranteeing sex education for the youth and free birth control for women.

"That's a win at least. At least the conviction makes it worth its time," he said.

Celdran said he would ask the Supreme Court to reverse its decision.