A Texas woman brought her cat to the vet for a routine rabies vaccine — only to learn the clinic had accidentally put the animal down instead, the devastated owner claims.

Michelle Olson, who lives in the Houston area, brought her 8-year-old kitty Sophie into Suburbia North Animal Hospital for the vaccine, ABC 13 reported.

Olson and her husband were on the way home with their fur baby when a frantic phone call came through from the vet’s office.

“It was the doctor herself calling saying, ‘Please get Sophie back here immediately, we gave her euthanasia instead of a rabies vaccine,'” Olson told the station.

The couple rushed Sophie back to the office — but they could already tell that she was fading fast.

“I immediately took her out of her cat carrier and I held her, talked to her, because I knew that was going to be the last thing she would remember,” Olson told the outlet. “I knew she wasn’t going to come back at that point. I just knew it. She pretty much was dying in my arms.”

Animal hospital staff did all they could to keep Sophie alive, but nothing worked, Olson said.

“They’re very sorry, that’s all they can say really,” she told the station. “It was an accident, I get that, but it was an accident that should’ve never happened.”

The vet’s office acknowledged the incident occurred to ABC 13, but declined to comment further.

“My main concern is not to bash them at all,” Olson said. “[I] just want to make [the] public aware to be vigilant, ask questions that you didn’t think you had to ask of your veterinarian so this doesn’t happen to anyone else.”

The heartbroken cat owner told Click 2 Houston she has filed a complaint with the Texas Board of Veterinary Medical Examiners.