A woman has set fire to a car she thought belonged to her ex. It didn't.

A woman has been charged with second-degree arson after she allegedly attempted to get revenge on her former partner by setting fire to his car.

There was just one problem (aside from the whole arson thing, that is): the torched car wasn’t his.

Police will allege Carmen Chamblee of Florida stuffed a rag into the petrol tank of a Honda Civic on August 31 before setting it on fire and cycling away from the scene.

The 19-year-old was arrested over the weekend after local police posted CCTV footage of the incident to their Facebook page calling for help in identifying the arsonist.

After being taken into custody, Chamblee reportedly admitted to detectives that she thought the car belonged to her ex-boyfriend, reports ABC Action News.

The vehicle’s true owner, however, is a man named Thomas Jennings.

Jennings' torched car. Image: ABC Action News.

The baffled Littlejohn resident made a futile attempt to save his four-door after being alerted to the blaze by his roommate.

“He came running in the house telling me my car was on fire,” he told ABC Action News. “So we immediately ran out there. He had a pot of water and was trying to get it to go out and it just wouldn’t.”

Jennings told the outlet he has absolutely no connection to the woman in the footage.

"I have no idea who she is," he said. "I've never seen her before in my life."

Chamblee has been booked into jail on $10,000 bail.