A Texas high school’s policy had everyone wigging out — for good reason.

McKinney High School withdrew its request this week for a cancer-stricken student to leave her wig at home because the hairpiece violates campus dress code.

Senior Kate Pepper, 17, was diagnosed with a second bout of brain cancer this summer. When the effects of chemotherapy and radiation treatment caused her hair to shed, Pepper went shopping for a confidence-boosting wig, ultimately choosing a dark bob with an aqua tint.

The blue hue, however, is banned at McKinney High, where all “unnatural” hair shades are prohibited. “I honestly just wanted to cry,” Pepper told KXAS-TV of the school’s insensitive enforcement.

Pepper documents her battle with cancer on YouTube. In an emotional video posted a week after her first treatment, she announces her decision to buzz her thinning locks. “I hate this,” she tells the camera, holding back tears.

Pepper’s mother, Tyliese, raised objections with school officials and reportedly received an emailed response saying rules are rules — along with $65 cash for a new wig.

“She’s fighting for her life. Why do we have to fight for this?” Tyliese told DallasNews.com.

Social media rallied around the suffering student, prompting Texas Lieutenant Governor Dan Patrick to tweet a message of support and a request for the school to reconsider.

On Sunday, Kate’s wig won. The school reversed its decision and released a statement:

“McKinney [Independent School District] made a decision to grant an exception to its dress code policy and will allow the student to wear a colored wig. The family has been contacted and were happy with the decision and expressed appreciation for the District’s understanding and reconsideration of the decision.”

“I feel a relief,” Kate told KVTV. “I am honestly hoping that if anyone else is going through my circumstances that this will help them along the way as well.”