diff --git a/include/boost/fusion/adapted/adt/detail/adapt_base.hpp b/include/boost/fusion/adapted/adt/detail/adapt_base.hpp
index 8512d04a..c304a4d1 100644
--- a/include/boost/fusion/adapted/adt/detail/adapt_base.hpp
+++ b/include/boost/fusion/adapted/adt/detail/adapt_base.hpp
@@ -219,7 +219,7 @@
                           BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ)       \
                         , I                                                     \
                         , false                                                 \
-                      > lvalue;                                                 \
+                      >::type lvalue;                                                 \
                                                                                 \
         BOOST_FUSION_ADAPT_STRUCT_MSVC_REDEFINE_TEMPLATE_PARAMS(                \
             TEMPLATE_PARAMS_SEQ)                                                \
diff --git a/test/sequence/adapt_assoc_adt.cpp b/test/sequence/adapt_assoc_adt.cpp
index 70d70ba4..220c4d8c 100644
--- a/test/sequence/adapt_assoc_adt.cpp
+++ b/test/sequence/adapt_assoc_adt.cpp
@@ -146,6 +146,7 @@ main()
 
         BOOST_MPL_ASSERT((boost::is_same<boost::fusion::result_of::value_at_key<ns::point, ns::x_member>::type, int>));
         BOOST_MPL_ASSERT((boost::is_same<boost::fusion::result_of::value_at_key<ns::point, ns::y_member>::type, int>));
+        BOOST_MPL_ASSERT((boost::is_same<boost::fusion::result_of::value_at_key<ns::point, ns::z_member>::type, int>));
 
         ns::point p(5, 3, 1);