diff --git a/Isosurfacing_3/examples/Isosurfacing_3/CMakeLists.txt b/Isosurfacing_3/examples/Isosurfacing_3/CMakeLists.txt
index 7d1b543c0dd..3900d08c51f 100644
--- a/Isosurfacing_3/examples/Isosurfacing_3/CMakeLists.txt
+++ b/Isosurfacing_3/examples/Isosurfacing_3/CMakeLists.txt
@@ -6,15 +6,31 @@ project( Isosurfacing_3_Examples )
 
 find_package(CGAL REQUIRED)
 
+# include for local package
+find_package(Eigen3 3.2.0) #(requires 3.2.0 or greater)
+include(CGAL_Eigen3_support)
+
 create_single_source_cgal_program( "marching_cubes_implicit_sphere.cpp" )
 create_single_source_cgal_program( "marching_cubes_cartesian_grid_sphere.cpp" )
+
 create_single_source_cgal_program( "marching_cubes_mesh_offset.cpp" )
+  target_link_libraries(marching_cubes_mesh_offset PUBLIC CGAL::Eigen3_support)
+
 create_single_source_cgal_program( "marching_cubes_inrimage.cpp" )
 create_single_source_cgal_program( "dual_contouring_cartesian_grid.cpp" )
+  target_link_libraries(dual_contouring_cartesian_grid PUBLIC CGAL::Eigen3_support)
+
 create_single_source_cgal_program( "dual_contouring_mesh_offset.cpp" )
+  target_link_libraries(dual_contouring_mesh_offset PUBLIC CGAL::Eigen3_support)
+
 create_single_source_cgal_program( "dual_contouring_octree.cpp" )
+  target_link_libraries(dual_contouring_octree PUBLIC CGAL::Eigen3_support)
+
 create_single_source_cgal_program( "all_cartesian_cube.cpp" )
+  target_link_libraries(all_cartesian_cube PUBLIC CGAL::Eigen3_support)
+
 create_single_source_cgal_program( "dual_contouring_implicit_iwp.cpp" )
+  target_link_libraries(dual_contouring_implicit_iwp PUBLIC CGAL::Eigen3_support)
 
 find_package(TBB)
 include(CGAL_TBB_support)
diff --git a/Isosurfacing_3/include/CGAL/Isosurfacing_3/internal/Dual_contouring_internal.h b/Isosurfacing_3/include/CGAL/Isosurfacing_3/internal/Dual_contouring_internal.h
index dcafddcef5a..1ebd538ea45 100644
--- a/Isosurfacing_3/include/CGAL/Isosurfacing_3/internal/Dual_contouring_internal.h
+++ b/Isosurfacing_3/include/CGAL/Isosurfacing_3/internal/Dual_contouring_internal.h
@@ -19,7 +19,7 @@
 #include <CGAL/Origin.h>
 
 #include <array>
-#include <eigen3/Eigen/SVD>
+#include <Eigen/SVD>
 #include <map>
 #include <mutex>
 #include <vector>
diff --git a/Isosurfacing_3/include/CGAL/Marching_cubes_3.h b/Isosurfacing_3/include/CGAL/Marching_cubes_3.h
index 86c0efcdbe2..be3ced5419f 100644
--- a/Isosurfacing_3/include/CGAL/Marching_cubes_3.h
+++ b/Isosurfacing_3/include/CGAL/Marching_cubes_3.h
@@ -48,7 +48,7 @@ void marching_cubes(const Domain_& domain, const typename Domain_::FT iso_value,
     // static_assert(Domain_::CELL_TYPE & CUBICAL_CELL);
 
     if (topologically_correct) {
-        internal::TMC_functor<Domain_, PointRange, PolygonRange> functor(domain, iso_value, points, polygons);
+        internal::TMC_functor<Domain_, PointRange, TriangleRange> functor(domain, iso_value, points, polygons);
         domain.iterate_cells(functor, Concurrency_tag());
     } else {
         internal::Marching_cubes_functor<Domain_> functor(domain, iso_value);