The passive voice is an important construction for packaging information. Many textbooks, style manuals or academic papers, however, offer different or even contradictory advice on the use of passives. Previous findings show that passives exhibit disciplinary variation, thus special treatment should be given to different disciplines. However, even within the same discipline, such as linguistics, there are different types of academic writing, namely theoretical articles versus empirical ones. To test whether a difference in the use of passives exists between these two sub-disciplines, the passives in articles sampled from Language and Applied Linguistics are counted and compared. The results show that applied linguistics articles demonstrate a significantly higher (Sig. = .000, p 〈 .001) occurrence of passives than theoretical ones.