diff --git a/Polygon_mesh_processing/test/Polygon_mesh_processing/orient_polygon_soup_test.cpp b/Polygon_mesh_processing/test/Polygon_mesh_processing/orient_polygon_soup_test.cpp
index 64780629d62..2469c494ad2 100644
--- a/Polygon_mesh_processing/test/Polygon_mesh_processing/orient_polygon_soup_test.cpp
+++ b/Polygon_mesh_processing/test/Polygon_mesh_processing/orient_polygon_soup_test.cpp
@@ -191,7 +191,7 @@ int main()
   assert(test_orient<Epic>(false) == 0);
   assert(test_orient<Epec>(false) == 0);
 
-  bool res = test_pipeline<Epic, CGAL::Sequential_tag>();
+  int res = test_pipeline<Epic, CGAL::Sequential_tag>();
   assert(res == 0);
   res = test_pipeline<Epec, CGAL::Sequential_tag>();
   assert(res == 0);