diff --git a/Polygonal_surface_reconstruction/doc/Polygonal_surface_reconstruction/Doxyfile.in b/Polygonal_surface_reconstruction/doc/Polygonal_surface_reconstruction/Doxyfile.in
index 660ea0a9391..4c7ea4aaaa7 100644
--- a/Polygonal_surface_reconstruction/doc/Polygonal_surface_reconstruction/Doxyfile.in
+++ b/Polygonal_surface_reconstruction/doc/Polygonal_surface_reconstruction/Doxyfile.in
@@ -1,3 +1,3 @@
 @INCLUDE = ${CGAL_DOC_PACKAGE_DEFAULTS}
 PROJECT_NAME = "CGAL ${CGAL_DOC_VERSION} - Polygonal Surface Reconstruction"
-EXCLUDE = ${CGAL_PACKAGE_INCLUDE_DIR}/CGAL/internal
+EXCLUDE = ${CGAL_PACKAGE_INCLUDE_DIR}/CGAL/Polygonal_surface_reconstruction/internal
diff --git a/Surface_mesh_approximation/doc/Surface_mesh_approximation/Doxyfile.in b/Surface_mesh_approximation/doc/Surface_mesh_approximation/Doxyfile.in
index 522fa384134..68d97d18eb7 100644
--- a/Surface_mesh_approximation/doc/Surface_mesh_approximation/Doxyfile.in
+++ b/Surface_mesh_approximation/doc/Surface_mesh_approximation/Doxyfile.in
@@ -7,4 +7,4 @@ EXTRACT_ALL                =  false
 HIDE_UNDOC_MEMBERS         =  true
 HIDE_UNDOC_CLASSES         =  true
 
-EXCLUDE = ${CGAL_PACKAGE_INCLUDE_DIR}/CGAL/internal
+EXCLUDE = ${CGAL_PACKAGE_INCLUDE_DIR}/CGAL/Surface_mesh_approximation/internal