diff --git a/Packages/Arrangement/examples/Arrangement_2/example10.C b/Packages/Arrangement/examples/Arrangement_2/example10.C
index 0e4561b4d27..c6dd5bd7226 100644
--- a/Packages/Arrangement/examples/Arrangement_2/example10.C
+++ b/Packages/Arrangement/examples/Arrangement_2/example10.C
@@ -6,7 +6,6 @@
 #define Cartesian CRTS
 #define Arr_polyline_traits APT
 
-#include <CGAL/basic.h>
 #include <CGAL/Cartesian.h>
 #include <CGAL/Arr_2_bases.h>
 #include <CGAL/Arr_2_default_dcel.h>
diff --git a/Packages/Arrangement/examples/Arrangement_2/example8.C b/Packages/Arrangement/examples/Arrangement_2/example8.C
index 21c6cbf3c20..473c302d646 100644
--- a/Packages/Arrangement/examples/Arrangement_2/example8.C
+++ b/Packages/Arrangement/examples/Arrangement_2/example8.C
@@ -6,7 +6,6 @@
 #define Homogeneous Ho
 #define Arr_segment_exact_traits ASET
 
-#include <CGAL/basic.h>
 #include <CGAL/Homogeneous.h>
 #include <CGAL/Arr_2_default_dcel.h>
 #include <CGAL/Arrangement_2.h>
diff --git a/Packages/Arrangement/examples/Arrangement_2/example9.C b/Packages/Arrangement/examples/Arrangement_2/example9.C
index 1d76cf1b5e8..879bf923848 100644
--- a/Packages/Arrangement/examples/Arrangement_2/example9.C
+++ b/Packages/Arrangement/examples/Arrangement_2/example9.C
@@ -6,7 +6,6 @@
 #define Cartesian CRTS
 #define Arr_polyline_traits APT
 
-#include <CGAL/basic.h>
 #include <CGAL/Cartesian.h>
 
 #include <CGAL/Arr_2_bases.h>