NBA superstar Steph Curry promised to solve the gender bias surrounding his Under Armour sneakers after receiving a letter from Riley Morrison, a 9-year-old who was disappointed the sneakers apparently didn’t come in girls’ sizes.

Morrison, a diehard Curry fan, initially contacted him expressing how “disappointed” she was after realizing the Under Armour website did not list the coveted sneakers in the girls’ section. She wanted a pair for her upcoming basketball season.

“I know you support girl athletes because you have two daughters and you host an all-girls basketball camp. I hope you can work with Under Armour to change this because girls want to rock the Curry 5s, too,” she wrote.

On Thursday, the Golden State Warrior uploaded his handwritten response to Morrison, which included an apology and a promise to correct the issue.

“I appreciate your concern and have spent the last two days talking to Under Armour about how we can fix the issue,” Curry opened his letter. “Unfortunately, we have labeled smaller sizes as “Boys” on the website. We are correcting this now!”

The two-time NBA champion also gifted the young girl with a pair of his Curry 5s and a guarantee on the upcoming Curry 6. In addition, he told her, “We have something special in the works for International Women’s Day on March 8, and I want you to celebrate with me!”

According to CBS Sports, Under Armour added a girls section for Curry footwear on its website following the basketball player’s letter. The apparel company will also label the boxes for the Curry  6 with co-gendered sizing.

Curry, the father of two daughters and a son, has advocated for gender equality in the past. He penned an op-ed for the Players’ Tribune about the boundary-free future he hoped his daughters experience. Curry also hosted his first girls’ basketball camp this year.