diff --git a/Kinetic_space_partition/include/CGAL/KSP_2/Data_structure.h b/Kinetic_space_partition/include/CGAL/KSP_2/Data_structure.h
index f6a2c9f78d6..5ec82ee8cee 100644
--- a/Kinetic_space_partition/include/CGAL/KSP_2/Data_structure.h
+++ b/Kinetic_space_partition/include/CGAL/KSP_2/Data_structure.h
@@ -38,7 +38,7 @@ public:
   typedef typename Kernel::Line_2 Line_2;
   typedef typename Kernel::Segment_2 Segment_2;
 
-  typedef Support_line<Kernel> Support_line_DS;
+  typedef Support_line_2<Kernel> Support_line_DS;
 
   typedef CGAL::KSP_2::internal::Vertex<FT> Vertex;
   typedef CGAL::KSP_2::internal::Segment Segment;