A court on Wednesday upheld a corruption conviction against former Brazilian President Luiz Inacio Lula da Silva, who was released from prison earlier this month.

A three-judge panel in Porto Alegre also ruled that da Silva’s prison sentence should be raised by four years to 17 years.

Da Silva remains free for now. He was released Nov. 8 after 19 months in jail when the Supreme Court ruled a person can be imprisoned only after all appeals have been exhausted.

Da Silva, who governed Brazil from 2003 to 2010, denies wrongdoing and says corruption cases against him are politically motivated.

The judges in Porto Alegre were ruling on a case in which da Silva allegedly benefited from upgrades that the Odebrecht and OAS firms made to a Sao Paulo farm.