A 73-year-old man presented with dysphagia and cough. An esophagram revealed bilateral Killian-Jamieson diverticula. The contrast filled both diverticula before gradually passing into the esophagus. During endoscopy, food debris was removed. Submucosal injection was followed by a small mucosotomy at the proximal septum using a Hybrid knife. The submucosal fibers were trimmed to expose the circular muscle. Submucosal tunneling was performed at the edges of the muscle with repeated injections to protect the mucosa on both sides. Myotomy was then carried out down to the bottom of the diverticulum. The mucosotomy was closed with four clips. A contrast study showed no extravasation and improved passage into the esophagus. The patient’s dysphagia resolved on follow-up two years later.