diff --git a/include/boost/concept_archetype.hpp b/include/boost/concept_archetype.hpp
index 994e149..d420c91 100644
--- a/include/boost/concept_archetype.hpp
+++ b/include/boost/concept_archetype.hpp
@@ -8,7 +8,8 @@
 #ifndef BOOST_CONCEPT_ARCHETYPES_HPP
 #define BOOST_CONCEPT_ARCHETYPES_HPP
 
-#include <iterator>
+#include <boost/config.hpp>
+#include <boost/iterator.hpp>
 #include <functional>
 
 namespace boost {
diff --git a/include/boost/concept_check.hpp b/include/boost/concept_check.hpp
index 07edb53..6b9ed35 100644
--- a/include/boost/concept_check.hpp
+++ b/include/boost/concept_check.hpp
@@ -8,9 +8,9 @@
 #ifndef BOOST_CONCEPT_CHECKS_HPP
 #define BOOST_CONCEPT_CHECKS_HPP
 
-#include <iterator>
-#include <utility>
 #include <boost/config.hpp>
+#include <boost/iterator.hpp>
+#include <utility>
 #include <boost/pending/limits.hpp>
 
 #if (__GNUC__) || defined(__KCC) || defined(__ghs) || defined(__MWERKS__)