diff --git a/include/boost/lambda/detail/lambda_functors.hpp b/include/boost/lambda/detail/lambda_functors.hpp
index 9b1b082..db229ec 100644
--- a/include/boost/lambda/detail/lambda_functors.hpp
+++ b/include/boost/lambda/detail/lambda_functors.hpp
@@ -15,6 +15,7 @@
 
 #include <boost/config.hpp>
 #include <boost/detail/workaround.hpp>
+#include <boost/utility/result_of.hpp>
 
 #if BOOST_WORKAROUND(BOOST_MSVC, == 1310)
 
@@ -297,6 +298,26 @@ public:
 } // namespace lambda
 } // namespace boost
 
+namespace boost {
+
+#if !defined(BOOST_RESULT_OF_USE_DECLTYPE) || defined(BOOST_NO_DECLTYPE)
+
+template<class T>
+struct result_of<boost::lambda::lambda_functor<T>()>
+{
+    typedef typename boost::lambda::lambda_functor<T>::nullary_return_type type;
+};
+
+#endif
+
+template<class T>
+struct tr1_result_of<boost::lambda::lambda_functor<T>()>
+{
+    typedef typename boost::lambda::lambda_functor<T>::nullary_return_type type;
+};
+
+}
+
 // is_placeholder
 
 #include <boost/is_placeholder.hpp>
diff --git a/test/result_of_tests.cpp b/test/result_of_tests.cpp
index 9047f5b..c8da329 100644
--- a/test/result_of_tests.cpp
+++ b/test/result_of_tests.cpp
@@ -299,7 +299,7 @@ int test_main(int, char *[]) {
     BOOST_CHECK(boost::lambda::bind(with_result_template_reference(), var(one), var(two), var(three), var(four), var(five), var(six), var(seven), var(eight), var(nine))() == 9);
 
     // Check using result_of with lambda functors
-    //BOOST_CHECK(apply0(constant(0)) == 0);
+    BOOST_CHECK(apply0(constant(0)) == 0);
     BOOST_CHECK(apply1<int>(_1, one) == 1);
     BOOST_CHECK(apply1<int&>(_1, one) == 1);
     BOOST_CHECK(apply1<const int&>(_1, one) == 1);