A connector for interconnecting joists which define triangular panel roof areas of a geodesic dome and comprised of a metal sleeve having a plurality of circumferentially spaced openings extending therethrough and a plurality of metal tongues secured to the adjacent ends of the joists at their junction point and extending radially inwardly through the sleeve openings, each having a tapered pin extending through its tongue and bearing against the inner surface of the sleeve to cam the joists' ends against the exterior of the sleeve and thereby hold the same in rigid fixed relation to the sleeve.
