Unusual coronary patterns such as single, intramural, and interarterial coronaries are the major risk factors for the arterial switch operation. Of the many approaches described, modified Aubert technique for coronary reconstruction is one of the flexible and safer procedure in complex coronary configulations. We report a successful modified Aubert operation for transposition of the great artery associated with Planché type Ⅱ coronary anatomy characterized by" single" and" interarterial" coronary arising from a posterior sinus. It is technically important to keep the sewing line of the coronary pouch away from the left margin of the coronary orifice. Since the interarterial coronary anatomy is a risk factor of future coronary events even after a successful Aubert procedure, a long-term follow up is important.