diff --git a/include/scalfmm/tree/utils.hpp b/include/scalfmm/tree/utils.hpp
index f91229e48da054bdca4fc48618f3767c5221f1d1..02746330ad1ffce69e34a09b646e4ee6ccacacdf 100644
--- a/include/scalfmm/tree/utils.hpp
+++ b/include/scalfmm/tree/utils.hpp
@@ -5,6 +5,13 @@
 #ifndef SCALFMM_TREE_UTILS_HPP
 #define SCALFMM_TREE_UTILS_HPP
 
+#include <array>
+#include <fstream>
+#include <iostream>
+#include <iterator>
+#include <tuple>
+#include <type_traits>
+
 #include "scalfmm/container/point.hpp"
 #include "scalfmm/meta/traits.hpp"
 #include "scalfmm/meta/utils.hpp"
@@ -13,13 +20,6 @@
 #include "scalfmm/utils/massert.hpp"
 #include "scalfmm/utils/math.hpp"
 
-#include <array>
-#include <fstream>
-#include <iostream>
-#include <iterator>
-#include <tuple>
-#include <type_traits>
-
 // namespace scalfmm::utils
 namespace scalfmm::index
 {