LONGVIEW, Texas (AP) — A 34-year-old woman who posed as a teenager to enroll as a sophomore at an East Texas high school has pleaded guilty to failure to identify.

A judge in Longview on Tuesday sentenced Charity Johnson to 85 days in jail in a plea agreement.

Johnson was arrested May 13 after a woman who allowed Johnson to stay at her apartment called the police when she discovered Johnson was not a teenager. New Life Christian School officials said Johnson enrolled last October with a guardian and indicated she was 15 years old.

Johnson told police she was born in 1997 and officers issued her a trespass warning. Authorities later determined she was much older.

Johnson has served nearly a month in jail.

Longview is about 130 miles east of Dallas.