diff --git a/include/boost/function/function_template.hpp b/include/boost/function/function_template.hpp
index 691a72c..848c1d4 100644
--- a/include/boost/function/function_template.hpp
+++ b/include/boost/function/function_template.hpp
@@ -960,11 +960,9 @@ template<typename R, typename... T>
                           R,
                           T...>& );
 
-#define BOOST_FUNCTION_PARTIAL_SPEC R (T...)
-
 template<typename R,
          typename... T>
-class function<BOOST_FUNCTION_PARTIAL_SPEC>
+class function<R (T...)>
   : public function_n<R, T...>
 {
   typedef function_n<R, T...> base_type;
@@ -1046,8 +1044,6 @@ public:
   }
 };
 
-#undef BOOST_FUNCTION_PARTIAL_SPEC
-
 } // end namespace boost
 
 #if defined(BOOST_MSVC)