This paper explores the persuasive effect of Tsotsitaal as compared to Standard Afrikaans in HIV/AIDS brochures in Eersterust, Gauteng Province. Somewhat surprisingly, the results of the analysis suggest that the brochure in Standard Afrikaans was perceived as significantly more persuasive than the Tsotsitaal brochure, whilst speakers of Standard Afrikaans were also rated more favourably than Tsotsitaal speakers in terms of credibility and source-receiver-similarity.