CAMBRIDGE, Mass. (AP) — A Massachusetts fifth grader who wrote to President Barack Obama suggesting that a woman be put on U.S. currency has seen her wish come true.

Sofia, whose family asked that her full name not be used, said she was ecstatic to get a phone call from U.S. Treasury Secretary Jacob Lew on Wednesday — her 11th birthday — telling her that Harriet Tubman would be featured on the front of the $20 bill.

Sofia wrote to Obama last year asking why there were no women on U.S. currency. Her letter included a list of a dozen possibilities, including Tubman, who escaped from slavery and later helped other slaves gain freedom.

Sofia tells The Associated Press that Tubman risked her own life to save others.