diff --git a/include/boost/python/detail/result.hpp b/include/boost/python/detail/result.hpp
index 315685e2..2e955e23 100755
--- a/include/boost/python/detail/result.hpp
+++ b/include/boost/python/detail/result.hpp
@@ -19,6 +19,7 @@
 #  include <boost/preprocessor/comma_if.hpp>
 #  include <boost/preprocessor/iterate.hpp>
 #  include <boost/preprocessor/debug/line.hpp>
+#  include <boost/preprocessor/enum_params.hpp>
 #  include <boost/preprocessor/repetition/enum_trailing_params.hpp>
 
 namespace boost { namespace python { namespace detail {