diff --git a/Surface_mesh_deformation/include/CGAL/Surface_mesh_deformation.h b/Surface_mesh_deformation/include/CGAL/Surface_mesh_deformation.h
index d425ce57fc8..046a0e57d18 100644
--- a/Surface_mesh_deformation/include/CGAL/Surface_mesh_deformation.h
+++ b/Surface_mesh_deformation/include/CGAL/Surface_mesh_deformation.h
@@ -16,10 +16,11 @@
 
 #include <CGAL/disable_warnings.h>
 
+#include <CGAL/assertions.h>
+#include <CGAL/boost/graph/named_params_helper.h>
 #include <CGAL/config.h>
 #include <CGAL/Default.h>
 #include <CGAL/tuple.h>
-
 #include <CGAL/Polygon_mesh_processing/Weights.h>
 #include <CGAL/Simple_cartesian.h>
 
diff --git a/Surface_mesh_parameterization/include/CGAL/Surface_mesh_parameterization/Orbifold_Tutte_parameterizer_3.h b/Surface_mesh_parameterization/include/CGAL/Surface_mesh_parameterization/Orbifold_Tutte_parameterizer_3.h
index 3d570311b53..068a882f0e1 100644
--- a/Surface_mesh_parameterization/include/CGAL/Surface_mesh_parameterization/Orbifold_Tutte_parameterizer_3.h
+++ b/Surface_mesh_parameterization/include/CGAL/Surface_mesh_parameterization/Orbifold_Tutte_parameterizer_3.h
@@ -25,6 +25,7 @@
 #include <CGAL/Surface_mesh_parameterization/Error_code.h>
 #include <CGAL/Surface_mesh_parameterization/orbifold_shortest_path.h>
 
+#include <CGAL/assertions.h>
 #include <CGAL/Polygon_mesh_processing/Weights.h>
 
 #include <CGAL/assertions.h>