Nowadays endoscopic treatment of common bile duct stones is considered the treatment of choice for all common bile duct stones. Although this procedure is related to a good success rate, in rare cases serious complications can happen, especially if you use a Dormia basket. Here we describe the clinical case of a patient affected by hepatolithiasis, cholelithiasis, and common bile duct lithiasis with entrapment of a Dormia basket in the cystic duct. It was necessary to perform a surgical choledochotomy to deal with this rare complication.