An antiproton, though, has a negative charge and an antielectron has a positive charge.
From the sciencedaily.com
Thus, the positron is a positively charged antielectron and the antiproton is a negatively charged equivalent of a proton.
From the en.wikipedia.org
The group at CERN, called the ALPHA collaboration, was looking at antihydrogen-atoms in which a positively charged antielectron, also known as a positron, orbits a negatively charged antiproton.