Erysipelothrix rhusiopathiae is a rare cause of endocarditis. Most cases were observed in people working with animals. We report a case in a 45-year old man without any exposure to animals. He was admitted to our hospital because of dyspnoea. Blood cultures were drawn following fever on day 8 of hospitalisation. Erysipelothrix rhusiopathiae was cultured and echocardiography showed a vegetation on the mitral valve. Appropriate antibiotic therapy and surgical treatment led to a good outcome of the infection.