The small church is a hall church (6.5 × 4.5 m) built of cobblestone. It is entered from the large church, on the north; the door has a semicircular arch outside and a flat lintel within. There is one flat-headed window each on the axis of the semicircular eastern apse and in the west, south and north walls; the north window is blocked by the wall of the large church built against it on that side. Beside the apse window on either side is a tall arched niche, each fitted with a loophole. In the sanctuary, below the window, stands an altar built of cobblestone. The apse is covered with a regular conch, the hall with a cylindrical vault.