diff --git a/Set_movable_separability_2/include/CGAL/is_pullout_direction_single_mold_translational_casting_2.h b/Set_movable_separability_2/include/CGAL/is_pullout_direction_single_mold_translational_casting_2.h
index 8fd8a432634..7955c9b6882 100755
--- a/Set_movable_separability_2/include/CGAL/is_pullout_direction_single_mold_translational_casting_2.h
+++ b/Set_movable_separability_2/include/CGAL/is_pullout_direction_single_mold_translational_casting_2.h
@@ -20,6 +20,8 @@
 #include <CGAL/Polygon_2.h>
 #include <CGAL/enum.h>
 #include <limits>
+#include "Set_movable_separability_2/Utils.h"
+#include "Set_movable_separability_2/Circle_arrangment.h"
 
 namespace CGAL {
 
diff --git a/Set_movable_separability_2/include/CGAL/pullout_directions_single_mold_translational_casting_2.h b/Set_movable_separability_2/include/CGAL/pullout_directions_single_mold_translational_casting_2.h
index 32392d6ad64..ded667a0536 100755
--- a/Set_movable_separability_2/include/CGAL/pullout_directions_single_mold_translational_casting_2.h
+++ b/Set_movable_separability_2/include/CGAL/pullout_directions_single_mold_translational_casting_2.h
@@ -19,6 +19,8 @@
 #define CGAL_PULLOUT_DIRECTIONS_SINGLE_MOLD_TRANSLATIONAL_CASTING_2_H
 
 #include <CGAL/Polygon_2.h>
+#include "Set_movable_separability_2/Utils.h"
+#include "Set_movable_separability_2/Circle_arrangment.h"
 
 namespace CGAL {