diff --git a/include/st_tree_detail.h b/include/st_tree_detail.h
index ed2d1f2..391fe44 100644
--- a/include/st_tree_detail.h
+++ b/include/st_tree_detail.h
@@ -109,8 +109,8 @@ struct max_maintainer {
 
     protected:
     typedef typename Alloc::template rebind<Unsigned>::other unsigned_allocator;
-    Unsigned _max;
     vector<Unsigned, unsigned_allocator> _hist;
+    Unsigned _max;
 };
 
 
diff --git a/include/st_tree_nodes.h b/include/st_tree_nodes.h
index d8c4256..d97b948 100644
--- a/include/st_tree_nodes.h
+++ b/include/st_tree_nodes.h
@@ -177,10 +177,10 @@ struct node_base {
     protected:
     tree_type* _tree;
     size_type _size;
-    max_maintainer<size_type, allocator_type> _depth;
     node_type* _parent;
     data_type _data;
     cs_type _children;
+    max_maintainer<size_type, allocator_type> _depth;
 
     bool _default_constructed() const {
         return (NULL == _parent) && (NULL == _tree);