On Wednesday, a federal judge ordered Adelphia Communications Corp.’s founder John Rigas and his son, Timothy Rigas, to report to prison on Aug. 13, nearly three years after the two were convicted in a corporate fraud case, the Associated Press reported.

In May, the 2nd U.S. Circuit Court of Appeals in Manhattan upheld the men’s convictions, on charges of securities fraud, conspiracy to commit bank fraud and bank fraud.

John Rigas was sentenced to 15 years in prison, and his son to 20. Last year, another son, Michael Rigas, was sentenced to 10 months of home confinement after pleading guilty to a charge of making a false entry in a company record.