Enderlein defended her title at the FIL World Luge Championships 1967 in Hammarstrand, achieving the best time in all four heats on 18 and 19 February and achieved a position 1.39 seconds ahead of Petra Tierlich and Helene Thurner. She also set a new luge record of 50.93 seconds. Because of the Hallstein Doctrine, the East German lugers were not permitted to compete at the FIL European Luge Championships 1967 at Königssee. As this was the only European Luge Championships which took place between 1963 and 1969, Enderlein never participated in any. At the GDR Championships in Oberhof that year she finished second behind Anna-Maria Müller.