Bochdalek's diaphragmatic hernia (BDH) is a congenital defect of the diaphragm that usually present during the neonatal period and rarely remain silent until adulthood. We present a 45-year-old-female case with diagnosis of double left kidney tumor prepared for robot-assisted partial nephrectomy (RPN). During the preoperative procedure she had a reduction of inspiratory volumes and increased pulmonary pressures: the robotic camera revealed the incidental presence of the left diaphragmatic defect. We report a simultaneous nephron sparing surgery (NSS) and left posterolateral BDH correction done by the da Vinci Surgical Robot (Intuitive Surgical, Sunnyvale, CA).