diff --git a/include/boost/type_traits.hpp b/include/boost/type_traits.hpp
index 4c9d8eb..0ada915 100644
--- a/include/boost/type_traits.hpp
+++ b/include/boost/type_traits.hpp
@@ -21,6 +21,7 @@
 #include "boost/type_traits/alignment_of.hpp"
 #include "boost/type_traits/common_type.hpp"
 #include "boost/type_traits/conditional.hpp"
+#include "boost/type_traits/copy_cv.hpp"
 #include "boost/type_traits/decay.hpp"
 #include "boost/type_traits/extent.hpp"
 #include "boost/type_traits/floating_point_promotion.hpp"
@@ -91,6 +92,7 @@
 #include "boost/type_traits/remove_pointer.hpp"
 #include "boost/type_traits/remove_reference.hpp"
 #include "boost/type_traits/remove_volatile.hpp"
+#include "boost/type_traits/type_identity.hpp"
 #include "boost/type_traits/type_with_alignment.hpp"
 #if !(defined(__sgi) && defined(__EDG_VERSION__) && (__EDG_VERSION__ == 238))
 #include "boost/type_traits/integral_promotion.hpp"
diff --git a/include/boost/type_traits/detail/common_type_impl.hpp b/include/boost/type_traits/detail/common_type_impl.hpp
index 93f4c1b..c9587b9 100644
--- a/include/boost/type_traits/detail/common_type_impl.hpp
+++ b/include/boost/type_traits/detail/common_type_impl.hpp
@@ -12,7 +12,7 @@
 #include <boost/type_traits/detail/common_arithmetic_type.hpp>
 #include <boost/type_traits/detail/composite_pointer_type.hpp>
 #include <boost/type_traits/detail/composite_member_pointer_type.hpp>
-#include <boost/type_traits/tp_identity.hpp>
+#include <boost/type_traits/type_identity.hpp>
 #include <boost/type_traits/is_lvalue_reference.hpp>
 #include <boost/type_traits/is_class.hpp>
 #include <boost/type_traits/is_union.hpp>
@@ -57,12 +57,12 @@ template<class T, class U> struct common_type_impl3;
 template<class T, class U> struct common_type_class: public boost::conditional<
 
     boost::is_convertible<T, U>::value && !boost::is_convertible<U, T>::value,
-    boost::tp_identity<U>,
+    boost::type_identity<U>,
 
     typename boost::conditional<
 
         boost::is_convertible<U, T>::value && !boost::is_convertible<T, U>::value,
-        boost::tp_identity<T>,
+        boost::type_identity<T>,
 
         common_type_impl3<T, U>
     >::type
diff --git a/include/boost/type_traits/detail/composite_pointer_type.hpp b/include/boost/type_traits/detail/composite_pointer_type.hpp
index 7e3757f..c807954 100644
--- a/include/boost/type_traits/detail/composite_pointer_type.hpp
+++ b/include/boost/type_traits/detail/composite_pointer_type.hpp
@@ -10,7 +10,6 @@
 //
 
 #include <boost/type_traits/copy_cv.hpp>
-#include <boost/type_traits/tp_identity.hpp>
 #include <boost/type_traits/remove_cv.hpp>
 #include <boost/type_traits/is_same.hpp>
 #include <boost/type_traits/is_void.hpp>
diff --git a/include/boost/type_traits/tp_identity.hpp b/include/boost/type_traits/type_identity.hpp
similarity index 56%
rename from include/boost/type_traits/tp_identity.hpp
rename to include/boost/type_traits/type_identity.hpp
index bf96810..6d2dd5b 100644
--- a/include/boost/type_traits/tp_identity.hpp
+++ b/include/boost/type_traits/type_identity.hpp
@@ -1,5 +1,5 @@
-#ifndef BOOST_TYPE_TRAITS_TP_IDENTITY_HPP_INCLUDED
-#define BOOST_TYPE_TRAITS_TP_IDENTITY_HPP_INCLUDED
+#ifndef BOOST_TYPE_TRAITS_TYPE_IDENTITY_HPP_INCLUDED
+#define BOOST_TYPE_TRAITS_TYPE_IDENTITY_HPP_INCLUDED
 
 //
 //  Copyright 2015 Peter Dimov
@@ -12,11 +12,11 @@
 namespace boost
 {
 
-template<class T> struct tp_identity
+template<class T> struct type_identity
 {
     typedef T type;
 };
 
 } // namespace boost
 
-#endif // #ifndef BOOST_TYPE_TRAITS_TP_IDENTITY_HPP_INCLUDED
+#endif // #ifndef BOOST_TYPE_TRAITS_TYPE_IDENTITY_HPP_INCLUDED