diff --git a/Spatial_searching/include/CGAL/Weighted_Minkowski_distance.h b/Spatial_searching/include/CGAL/Weighted_Minkowski_distance.h
index ee76e50698e..fcc19d99841 100644
--- a/Spatial_searching/include/CGAL/Weighted_Minkowski_distance.h
+++ b/Spatial_searching/include/CGAL/Weighted_Minkowski_distance.h
@@ -18,15 +18,16 @@
 
 #include <CGAL/license/Spatial_searching.h>
 
+#include <CGAL/array.h>
+#include <CGAL/assertions.h>
+#include <CGAL/number_utils.h>
+#include <CGAL/double.h>
+#include <CGAL/Kd_tree_rectangle.h>
+#include <CGAL/Spatial_searching/internal/Get_dimension_tag.h>
 
 #include <cmath>
 #include <vector>
 
-#include <CGAL/array.h>
-#include <CGAL/number_utils.h>
-#include <CGAL/Kd_tree_rectangle.h>
-#include <CGAL/Spatial_searching/internal/Get_dimension_tag.h>
-
 namespace CGAL {
   namespace internal {
     template<class T, class Dim>