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MANILA - A University of the Philippines professor said on Sunday it was high time revisit the Philippine Labor Code amid the issue of contractualization.

Professor Virgel Binghay, who teaches in UP's School of Labor and Industrial Relations, said the existing law only prohibits labor-only contracting but allow other forms of contractualization.

"I think it's really important to revisit the Labor Code. Kasi archaic na siya. Fossilized na siya," he told ANC Sunday, adding that there should be stiffer penalties on companies violating the law.

President Rodrigo Duterte has yet to sign an executive order to end the practice of "endo" or end of contract. Malacañang said Duterte may no longer sign the EO and he will just wait for Congress to come up with a legislation.

Binghay hopes Congress will fast-track the legislation for the sake of workers.

Workers are gearing up for a mass protest on May 1, Labor Day to denounce the government's failure to implement a national minimum wage and to end contractualization.

The Kilusang Mayo Uno (KMU) said over 150,000 workers across the country will join the Labor Day protest, which will culminate in Mendiola, Manila.