diff --git a/Arrangement_on_surface_2/examples/Arrangement_on_surface_2/global_removal.cpp b/Arrangement_on_surface_2/examples/Arrangement_on_surface_2/global_removal.cpp
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new mode 100644
diff --git a/Arrangement_on_surface_2/include/CGAL/Arrangement_2/Arrangement_on_surface_2_impl.h b/Arrangement_on_surface_2/include/CGAL/Arrangement_2/Arrangement_on_surface_2_impl.h
old mode 100755
new mode 100644