An appeals court in Kuwait has sentenced a leading former opposition lawmaker to two years in prison after he was found guilty of insulting the country's ruler.

Musallam al-Barrack's lawyer Thamer al-Jedaei says his client will appeal the case to the country's Supreme Court. Al-Barrack's supporters are planning a sit-in outside of his house Sunday evening.

Al-Barrack's charges stem from a speech he gave during a rally in October 2012 in which he called on Kuwait's ruler Sheikh Sabah Al Ahmed Al Sabah not to "drag the country into a dark abyss," and said Kuwait risked becoming an autocratic state.

After the verdict was announced Sunday, al-Barrack told local media he is ready to face prison but warned that his ideas are already "out there."