diff --git a/utility.htm b/utility.htm
index 1a1102e..16616ad 100644
--- a/utility.htm
+++ b/utility.htm
@@ -175,6 +175,7 @@ void f() {
BOOST_RESULT_OF_NUM_ARGS
to the maximum
value for N.
This implementation of result_of
requires class template partial specialization, the ability to parse function types properly, and support for SFINAE. If result_of
is not supported by your compiler, including the header boost/utility/result_of.hpp
will define the macro BOOST_NO_RESULT_OF
. Contributed by Doug Gregor.