Democratic Republic of Congo’s President Felix Tshisekedi has appointed the country’s first-ever female prime minister, naming planning minister Judith Suminwa Tuluka to the role.

An economist, she takes over as prime minister from Jean-Michel Sama Lukonde, following Tshisekedi’s sweeping re-election as president on December 20.

“I am aware of the great responsibility … We will work for peace and the development of the country,” Suminwa said on national television on Monday.