Fears linked to a group's culture can negatively influence national attachment. This paper brings new insight into minority groups’ national attachment by empirically examining the impact of language threat perceptions on it. Quebec is employed as a case given its enduring tensions with Canada. The assays' results show that perceiving French as threatened positively impacts Quebecers’ support for independence and negatively influences their feelings towards Canada, and allow the conclusion that it is an individual's linguistic perceptions that directly define their national attachment rather than just their linguistic group membership.