The Supreme Court has increased the prison sentence of Jakub Fabian Skrzypski, a Polish national and reportedly the first foreigner convicted of treason in Indonesia, to seven years in prison for his role in assisting a separatist group in Papua.

The sentence given by the country’s highest court is two years longer than the five-year sentence handed down in May by the Wamena District Court in Papua, which found Skrzypski guilty of treason for his involvement in a plot to overthrow the Indonesian government and making contact with a rebel group in Papua.