N.C. Gen. Stat. § 14-7.5
When an indictment charges an habitual felon with a felony as above provided and an indictment also charges that said person is an habitual felon as provided herein, the defendant shall be tried for the principal felony as provided by law. The indictment that the person is an habitual felon shall not be revealed to the jury unless the jury shall find that the defendant is guilty of the principal felony or other felony with which he is charged. If the jury finds the defendant guilty of a felony, the bill of indictment charging the defendant as an habitual felon may be presented to the same jury. Except that the same jury may be used, the proceedings shall be as if the issue of habitual felon were a principal charge. If the jury finds that the defendant is an habitual felon, the trial judge shall enter judgment according to the provisions of this Article. If the jury finds that the defendant is not an habitual felon, the trial judge shall pronounce judgment on the principal felony or felonies as provided by law.
N.C. Gen. Stat. § 14-7.5