<p>For a long period of time, the Walloon region of Belgium has been an exception with regard to electoral trends in Western Europe. Not only the socialist party (PS) remained firmly entrenched as the dominant political party, but the region is also characterized by the absence of a viable radical right challenger party. The elections of June 2024, however, dramatically changed this Walloon exceptionalism. For the first time in over a century, the Socialist Party lost its dominant position. The main research question for this article is to determine whether this electoral result reflects structural attitudinal changes among the Walloon population. An analysis of CSES-Belgium election survey data indeed demonstrates that public opinion in the Walloon region shifted to the right side of the political spectrum, while ideology becomes a more important determinant of the vote. This might hint at the fact that the PS draws support from a smaller group of core leftist voters. The analysis further shows that while anti-immigrant sentiments are quite prevalent in the Walloon region, partly because of the different party offer, they do not constitute a significant voting motive.</p>