diff --git a/Arrangement_on_surface_2/examples/Arrangement_on_surface_2/polycurve_geodesic.cpp b/Arrangement_on_surface_2/examples/Arrangement_on_surface_2/polycurve_geodesic.cpp
index d07529255fd..d5f9d63a49c 100644
--- a/Arrangement_on_surface_2/examples/Arrangement_on_surface_2/polycurve_geodesic.cpp
+++ b/Arrangement_on_surface_2/examples/Arrangement_on_surface_2/polycurve_geodesic.cpp
@@ -1,8 +1,6 @@
 //! \file examples/Arrangement_on_surface_2/polycurve_geodesic.cpp
 // Constructing an arrangement of polygeodesics.
 
-#define CGAL_IDENTIFICATION_XY 2
-
 #include <vector>
 #include <list>