The African Well Fund has announced the details of its second annual fundraising drive to build wells in Africa in honor of Bono’s birthday. Last year the nonprofit organization, founded by U2 fans, raised more than $10,000 to build 14 wells in Uganda with its partner Africare. This year the African Well Fund is aiming to raise $15,000 for well projects in Ethiopia.

Contributers who donate a monetary gift are invited to sign a birthday card for Bono. Last year Bono responded to the African Well Fund’s efforts, saying it was “the best gift I could have gotten on my birthday.”