diff --git a/include/boost/utility/result_of.hpp b/include/boost/utility/result_of.hpp
index f58c3b3..851d39e 100644
--- a/include/boost/utility/result_of.hpp
+++ b/include/boost/utility/result_of.hpp
@@ -59,7 +59,7 @@ struct result_of : get_result_of<F, FArgs, (has_result_type<F>::value)> {};
 
 }
 #else
-#  error Your compiler cannot support class template result_of
+#  define BOOST_NO_RESULT_OF 1
 #endif
 
 #endif // BOOST_RESULT_OF_HPP
diff --git a/utility.htm b/utility.htm
index bb320b3..1a1102e 100644
--- a/utility.htm
+++ b/utility.htm
@@ -175,7 +175,7 @@ void f() {
                 <code>BOOST_RESULT_OF_NUM_ARGS</code> to the maximum
                 value for <em>N</em>.</p>
 
-                <p>This implementation of <code>result_of</code> requires class template partial specialization, the ability to parse function types properly, and support for SFINAE. Contributed by Doug Gregor.</p>
+                <p>This implementation of <code>result_of</code> requires class template partial specialization, the ability to parse function types properly, and support for SFINAE. If <code>result_of</code> is not supported by your compiler, including the header <code>boost/utility/result_of.hpp</code> will define the macro <code>BOOST_NO_RESULT_OF</code>. Contributed by Doug Gregor.</p>
 
 		<h2>Class templates for the Base-from-Member Idiom</h2>
 		<p>See <a href="base_from_member.html">separate documentation</a>.</p>