diff --git a/Polyhedron/demo/Polyhedron/Polyhedron_type.h b/Polyhedron/demo/Polyhedron/Polyhedron_type.h
index 8e7c152983b..0bec542bbd9 100644
--- a/Polyhedron/demo/Polyhedron/Polyhedron_type.h
+++ b/Polyhedron/demo/Polyhedron/Polyhedron_type.h
@@ -2,8 +2,6 @@
 #define POLYHEDRON_TYPE_H
 
 // CGAL
-#include <CGAL/basic.h>
-
 // kernel
 #include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
 #include <CGAL/Exact_predicates_exact_constructions_kernel.h>