diff --git a/Surface_mesh_segmentation/include/CGAL/internal/Surface_mesh_segmentation/Filters.h b/Surface_mesh_segmentation/include/CGAL/internal/Surface_mesh_segmentation/Filters.h
index ae2c7809284..f1733ef2ac4 100644
--- a/Surface_mesh_segmentation/include/CGAL/internal/Surface_mesh_segmentation/Filters.h
+++ b/Surface_mesh_segmentation/include/CGAL/internal/Surface_mesh_segmentation/Filters.h
@@ -30,6 +30,8 @@
 
 #include <boost/optional.hpp>
 #include <CGAL/boost/graph/iterator.h>
+#include <CGAL/number_utils.h>
+#include <CGAL/double.h>
 namespace CGAL
 {