diff --git a/include/boost/range/detail/any_iterator_interface.hpp b/include/boost/range/detail/any_iterator_interface.hpp
index d3b21ea..1585805 100644
--- a/include/boost/range/detail/any_iterator_interface.hpp
+++ b/include/boost/range/detail/any_iterator_interface.hpp
@@ -12,7 +12,6 @@
 
 #include <boost/range/detail/any_iterator_buffer.hpp>
 #include <boost/iterator/iterator_categories.hpp>
-#include <boost/mpl/not.hpp>
 #include <boost/type_traits/is_convertible.hpp>
 #include <boost/type_traits/is_reference.hpp>
 #include <boost/type_traits/remove_const.hpp>