diff --git a/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_approximation_cache.h b/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_approximation_cache.h
index 17d53691606..9d872f4f78f 100644
--- a/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_approximation_cache.h
+++ b/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_approximation_cache.h
@@ -16,6 +16,8 @@
 #ifndef CGAL_DRAW_AOS_ARR_APPROXIMATION_CACHE_H
 #define CGAL_DRAW_AOS_ARR_APPROXIMATION_CACHE_H
 
+#include <CGAL/license/Arrangement_on_surface_2.h>
+
 #include <boost/range/iterator_range.hpp>
 
 #include <CGAL/Arr_enums.h>
diff --git a/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_bounded_approximate_face.h b/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_bounded_approximate_face.h
index f986c9065fe..b5e72418a06 100644
--- a/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_bounded_approximate_face.h
+++ b/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_bounded_approximate_face.h
@@ -16,6 +16,8 @@
 #ifndef CGAL_DRAW_AOS_ARR_BOUNDED_APPROXIMATE_FACE_H
 #define CGAL_DRAW_AOS_ARR_BOUNDED_APPROXIMATE_FACE_H
 
+#include <CGAL/license/Arrangement_on_surface_2.h>
+
 #include <iterator>
 #include <optional>
 #include <utility>
diff --git a/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_bounded_approximate_halfedge.h b/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_bounded_approximate_halfedge.h
index d17d519c5b9..3668dd1953c 100644
--- a/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_bounded_approximate_halfedge.h
+++ b/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_bounded_approximate_halfedge.h
@@ -16,6 +16,8 @@
 #ifndef CGAL_DRAW_AOS_ARR_BOUNDED_APPROXIMATE_HALFEDGE_H
 #define CGAL_DRAW_AOS_ARR_BOUNDED_APPROXIMATE_HALFEDGE_H
 
+#include <CGAL/license/Arrangement_on_surface_2.h>
+
 #include <algorithm>
 #include <array>
 #include <cstdlib>
diff --git a/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_bounded_approximate_vertex.h b/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_bounded_approximate_vertex.h
index 2f25b68b415..44c5867cb18 100644
--- a/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_bounded_approximate_vertex.h
+++ b/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_bounded_approximate_vertex.h
@@ -16,6 +16,8 @@
 #ifndef CGAL_DRAW_AOS_ARR_BOUNDED_APPROXIMATE_VERTEX_H
 #define CGAL_DRAW_AOS_ARR_BOUNDED_APPROXIMATE_VERTEX_H
 
+#include <CGAL/license/Arrangement_on_surface_2.h>
+
 #include <CGAL/Draw_aos/type_utils.h>
 #include <CGAL/Draw_aos/Arr_render_context.h>
 
diff --git a/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_bounded_face_triangulator.h b/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_bounded_face_triangulator.h
index c19fc1c9cd8..01041c66195 100644
--- a/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_bounded_face_triangulator.h
+++ b/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_bounded_face_triangulator.h
@@ -16,6 +16,8 @@
 #ifndef CGAL_DRAW_AOS_ARR_FACE_TRIANGULATOR_H
 #define CGAL_DRAW_AOS_ARR_FACE_TRIANGULATOR_H
 
+#include <CGAL/license/Arrangement_on_surface_2.h>
+
 #include <algorithm>
 #include <optional>
 #include <type_traits>
diff --git a/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_bounded_renderer.h b/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_bounded_renderer.h
index 33e28f4affd..964697daf40 100644
--- a/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_bounded_renderer.h
+++ b/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_bounded_renderer.h
@@ -16,6 +16,8 @@
 #ifndef CGAL_DRAW_AOS_ARR_BOUNDED_RENDERER_H
 #define CGAL_DRAW_AOS_ARR_BOUNDED_RENDERER_H
 
+#include <CGAL/license/Arrangement_on_surface_2.h>
+
 #include <CGAL/Bbox_2.h>
 #include <CGAL/Draw_aos/Arr_approximation_cache.h>
 #include <CGAL/Draw_aos/Arr_bounded_approximate_face.h>
diff --git a/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_coordinate_converter.h b/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_coordinate_converter.h
index 405d995ca86..82b2478f10c 100644
--- a/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_coordinate_converter.h
+++ b/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_coordinate_converter.h
@@ -16,6 +16,8 @@
 #ifndef CGAL_DRAW_AOS_ARR_COORDINATE_CONVERTER_H
 #define CGAL_DRAW_AOS_ARR_COORDINATE_CONVERTER_H
 
+#include <CGAL/license/Arrangement_on_surface_2.h>
+
 #include <cmath>
 
 #include <CGAL/number_type_config.h>
diff --git a/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_face_point_generator.h b/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_face_point_generator.h
index c4ae8a15f8f..398f8be03e4 100644
--- a/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_face_point_generator.h
+++ b/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_face_point_generator.h
@@ -16,6 +16,8 @@
 #ifndef CGAL_DRAW_AOS_ARR_FACE_POINT_GENERATOR_H
 #define CGAL_DRAW_AOS_ARR_FACE_POINT_GENERATOR_H
 
+#include <CGAL/license/Arrangement_on_surface_2.h>
+
 #include <utility>
 #include <variant>
 #include <vector>
diff --git a/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_render_context.h b/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_render_context.h
index 09b63efbbf9..54a554535db 100644
--- a/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_render_context.h
+++ b/Arrangement_on_surface_2/include/CGAL/Draw_aos/Arr_render_context.h
@@ -16,6 +16,8 @@
 #ifndef CGAL_DRAW_AOS_ARR_RENDER_CONTEXT_H
 #define CGAL_DRAW_AOS_ARR_RENDER_CONTEXT_H
 
+#include <CGAL/license/Arrangement_on_surface_2.h>
+
 #include <cstdlib>
 #include <memory>
 #include <atomic>
diff --git a/Arrangement_on_surface_2/include/CGAL/Draw_aos/type_utils.h b/Arrangement_on_surface_2/include/CGAL/Draw_aos/type_utils.h
index 8098b5d03d4..3704bd923d9 100644
--- a/Arrangement_on_surface_2/include/CGAL/Draw_aos/type_utils.h
+++ b/Arrangement_on_surface_2/include/CGAL/Draw_aos/type_utils.h
@@ -16,6 +16,8 @@
 #ifndef CGAL_DRAW_AOS_TYPE_UTILS_H
 #define CGAL_DRAW_AOS_TYPE_UTILS_H
 
+#include <CGAL/license/Arrangement_on_surface_2.h>
+
 #include <limits>
 #include <vector>
 #include <type_traits>