diff --git a/Polyhedron_IO/include/CGAL/IO/generic_print_polyhedron.h b/Polyhedron_IO/include/CGAL/IO/generic_print_polyhedron.h
index 2e93e929782..35726c19313 100644
--- a/Polyhedron_IO/include/CGAL/IO/generic_print_polyhedron.h
+++ b/Polyhedron_IO/include/CGAL/IO/generic_print_polyhedron.h
@@ -24,6 +24,10 @@
 
 #include <CGAL/license/Polyhedron.h>
 
+#include <CGAL/boost/graph/named_function_params.h>
+#include <CGAL/boost/graph/named_params_helper.h>
+#include <CGAL/property_map.h>
+#include <boost/graph/graph_traits.hpp>
 #include <CGAL/basic.h>
 #include <CGAL/Inverse_index.h>
 #include <iostream>
diff --git a/Surface_mesh/include/CGAL/Surface_mesh/Surface_mesh.h b/Surface_mesh/include/CGAL/Surface_mesh/Surface_mesh.h
index d362415371d..e41b3da6d39 100644
--- a/Surface_mesh/include/CGAL/Surface_mesh/Surface_mesh.h
+++ b/Surface_mesh/include/CGAL/Surface_mesh/Surface_mesh.h
@@ -2032,13 +2032,17 @@ private: //------------------------------------------------------- private data
     return os.good();
   }
 
+  template <typename P>
+  bool write_off(std::ostream& os, const Surface_mesh<P>& sm) {
+    return write_off(os, sm, CGAL::parameters::all_default());
+  }
   /// \relates Surface_mesh
   /// 
   /// This operator calls `write_off(std::ostream& os, const CGAL::Surface_mesh& sm)`.
    template <typename P>
   std::ostream& operator<<(std::ostream& os, const Surface_mesh<P>& sm)
   {
-    write_off(os, sm);
+    write_off(os, sm, CGAL::parameters::all_default());
     return os;
   }