*Entertainment Weekly is reporting that Tracy Morgan — who underwent a kidney transplant in December — is back at work on NBC’s “30 Rock.”

As previously reported, Morgan missed several episodes of the sitcom to recover from the successful surgery in New York. A source told EW that his appearances are minimal in his first couple of episodes back, but the show will explain his disappearance.

Morgan recently revealed that his kidney donor was his ex-girlfriend Tanisha Hall, who  donated the organ even after the couple split.