A capacitor includes a body including a dielectric layer and a plurality of first and second internal electrodes which are alternately disposed while having the dielectric layer therebetween, including first to sixth surfaces; a first external electrode disposed on the third surface and including a first extension portion extending from the third surface to portions of the first, second, fifth, and sixth surfaces, adjacent to the third surface; a second external electrode disposed on the fourth surface and including a second extension portion extending from the fourth surface to portions of the first, second, fifth, and sixth surfaces, adjacent to the fourth surface; and a plating prevention member covering the first and second extension portions disposed on the fifth surface and the sixth surface.