We present the case of a patient that had previous bariatric surgery. She developed a gastro-gastric fistula after conventional gastric bypass (not isolated) which led her to regain the weight she had lost before (BMI 36). Laparoscopically, we divided and resized her gastric pouch and performed a Roux-en-Y reconstruction. The surgery and postoperative outcomes were uneventful. Three months after surgery, the patient lost 14kb. (BMI 30).