By May 1944 the camp became a subcamp of Majdanek concentration camp, and was named "Lublin concentration camp–Warsaw labor camp" (). According to some sources, it came due to deportations of prisoners to other camps as well as the approach of the Soviet army to Warsaw. Historian Bogusław Tadeusz Kopka writes, however, that widespread corruption among the camp's personnel forced SS authorities to arrest camp commandant Nikolaus Herbet, transfer whole guard company back to Germany and, consequently, to strip the camp with its independent status.