diff --git a/Periodic_3_triangulation_3/include/CGAL/Periodic_3_triangulation_3/internal/Robust_periodic_weighted_circumcenter_traits_3.h b/Periodic_3_triangulation_3/include/CGAL/Periodic_3_triangulation_3/internal/Robust_periodic_weighted_circumcenter_traits_3.h
index 5fad52049f2..8874ab5e419 100644
--- a/Periodic_3_triangulation_3/include/CGAL/Periodic_3_triangulation_3/internal/Robust_periodic_weighted_circumcenter_traits_3.h
+++ b/Periodic_3_triangulation_3/include/CGAL/Periodic_3_triangulation_3/internal/Robust_periodic_weighted_circumcenter_traits_3.h
@@ -279,7 +279,7 @@ public:
   { return Construct_weighted_circumcenter_3(static_cast<const Base_traits&>(*this)); }
 
   Robust_periodic_weighted_circumcenter_traits_3(const Iso_cuboid_3& domain = Iso_cuboid_3(0,0,0,1,1,1),
-                                                 const Base_traits& t = Base_traits() )
+                                                 const Base_traits& t = Base_traits())
     : Base_traits(domain, t)
   { }
 };