diff --git a/Mesh_3/benchmark/Mesh_3/StdAfx.h b/Mesh_3/benchmark/Mesh_3/StdAfx.h
index 4671dbfc8df..2c7f3b0abd4 100644
--- a/Mesh_3/benchmark/Mesh_3/StdAfx.h
+++ b/Mesh_3/benchmark/Mesh_3/StdAfx.h
@@ -227,7 +227,6 @@
 //#include <CGAL/Mesh_3/Robust_intersection_traits_3.h>
 //#include <CGAL/Mesh_3/Robust_weighted_circumcenter_filtered_traits_3.h>
 //#include <CGAL/Mesh_3/Triangle_accessor_primitive.h>
-//#include <CGAL/Mesh_3/Triangulation_lazy_ds_cell_base_3.h>
 //#include <CGAL/Mesh_3/utilities.h>
 //#include <CGAL/Mesh_cell_base_3.h>
 #include <CGAL/Mesh_cell_criteria_3.h>
diff --git a/Mesh_3/demo/Mesh_3/StdAfx.h b/Mesh_3/demo/Mesh_3/StdAfx.h
index 989e9328cac..875df0f41c1 100644
--- a/Mesh_3/demo/Mesh_3/StdAfx.h
+++ b/Mesh_3/demo/Mesh_3/StdAfx.h
@@ -285,7 +285,6 @@
 //#include <CGAL/Mesh_3/Robust_intersection_traits_3.h>
 //#include <CGAL/Mesh_3/Robust_weighted_circumcenter_filtered_traits_3.h>
 //#include <CGAL/Mesh_3/Triangle_accessor_primitive.h>
-//#include <CGAL/Mesh_3/Triangulation_lazy_ds_cell_base_3.h>
 //#include <CGAL/Mesh_3/utilities.h>
 //#include <CGAL/Mesh_cell_base_3.h>
 #include <CGAL/Mesh_cell_criteria_3.h>
diff --git a/Mesh_3/examples/Mesh_3/mesh_implicit_sphere.cpp b/Mesh_3/examples/Mesh_3/mesh_implicit_sphere.cpp
index fd182490773..55a9350f40b 100644
--- a/Mesh_3/examples/Mesh_3/mesh_implicit_sphere.cpp
+++ b/Mesh_3/examples/Mesh_3/mesh_implicit_sphere.cpp
@@ -3,7 +3,6 @@
 #include <CGAL/Mesh_triangulation_3.h>
 #include <CGAL/Mesh_complex_3_in_triangulation_3.h>
 #include <CGAL/Mesh_criteria_3.h>
-#include <CGAL/Triangulation_lazy_ds_cell_base_3.h>
 
 #include <CGAL/Implicit_mesh_domain_3.h>
 #include <CGAL/make_mesh_3.h>
diff --git a/Mesh_3/examples/Mesh_3/mesh_polyhedral_domain.cpp b/Mesh_3/examples/Mesh_3/mesh_polyhedral_domain.cpp
index cc6d4092d79..1cc6a6c5acf 100644
--- a/Mesh_3/examples/Mesh_3/mesh_polyhedral_domain.cpp
+++ b/Mesh_3/examples/Mesh_3/mesh_polyhedral_domain.cpp
@@ -3,10 +3,6 @@
 #include <CGAL/Mesh_triangulation_3.h>
 #include <CGAL/Mesh_complex_3_in_triangulation_3.h>
 #include <CGAL/Mesh_criteria_3.h>
-#if defined(CGAL_MESH_3_USE_LAZY_SORTED_REFINEMENT_QUEUE) \
- || defined(CGAL_MESH_3_USE_LAZY_UNSORTED_REFINEMENT_QUEUE)
-  #include <CGAL/Triangulation_lazy_ds_cell_base_3.h>
-#endif
 
 #include <CGAL/Polyhedral_mesh_domain_3.h>
 #include <CGAL/make_mesh_3.h>
diff --git a/Triangulation_3/include/CGAL/Triangulation_cell_base_3.h b/Triangulation_3/include/CGAL/Triangulation_cell_base_3.h
index cb3f077760e..d0e9c1bde35 100644
--- a/Triangulation_3/include/CGAL/Triangulation_cell_base_3.h
+++ b/Triangulation_3/include/CGAL/Triangulation_cell_base_3.h
@@ -25,7 +25,6 @@
 
 #include <CGAL/basic.h>
 #include <CGAL/triangulation_assertions.h>
-# include <CGAL/Triangulation_lazy_ds_cell_base_3.h>
 
 namespace CGAL {
 
diff --git a/Triangulation_3/include/CGAL/Triangulation_cell_base_with_circumcenter_3.h b/Triangulation_3/include/CGAL/Triangulation_cell_base_with_circumcenter_3.h
index 754e44c7066..1218aad8cf5 100644
--- a/Triangulation_3/include/CGAL/Triangulation_cell_base_with_circumcenter_3.h
+++ b/Triangulation_3/include/CGAL/Triangulation_cell_base_with_circumcenter_3.h
@@ -26,7 +26,6 @@
 
 #include <CGAL/basic.h>
 #include <CGAL/triangulation_assertions.h>
-# include <CGAL/Triangulation_lazy_ds_cell_base_3.h>
 # include <CGAL/Triangulation_ds_cell_base_3.h>
 
 namespace CGAL {