This article argues that QUE-deletion in Montreal French is a syntactic rule, rather than a phonological one, as earlier treatments had claimed. It is divided into five sections: (1) a discussion of why the rule accounting for the alternation of QUE with zero is a deletion, not an insertion rule, (2) a critique of the best known earlier (phonological) accounts of the rule, (3) a proposed lexico-syntactic solution, (4) an argument for the syntactic nature of the rule on the basis of its ordering among related rules, and (5) a limited survey of QUE-deletion in other popular dialects, with a view to finding indirect evidence as to its phonological or syntactic nature in Montreal French. This external evidence supports neither the phonological nor the syntactic solution conclusively. (Author)