The 8th U.S. Circuit Court of Appeals were not Sammy Hagar‘s best friends on Thursday. That’s when they revived a defamation lawsuit against him stemming from a one-time Playboy bunny who claimed he had fathered her son.

Hagar wrote about it in his 2001 autobiography, Red: My Uncensored Life in Rock, claiming the woman extorted him. But the Court of Appeals said a lower court judge erred in dismissing claims by the woman, who can now pursue claims of libel, invasion of privacy and breach of a confidentiality agreement. Hagar never identified the woman in his book, but said he did pay her during her pregnancy. The boy she gave birth to on February 27th, 1989 died five days later.

Speaking of this latest turn of events, Hagar’s lawyer, Wesley Kinnear, says, “We are disappointed that the Court of Appeals didn’t affirm the lower court decision in its entirety. We look forward to the next step.”