Index: boost/spirit/home/lex/lexer/support_functions.hpp
===================================================================
--- boost/spirit/home/lex/lexer/support_functions.hpp	(revision 84231)
+++ boost/spirit/home/lex/lexer/support_functions.hpp	(working copy)
@@ -47,11 +47,13 @@
         template <typename Env>
         struct result
         {
-            typedef typename
-                remove_const<
-                    typename mpl::at_c<typename Env::args_type, 4>::type
-                >::type
-            context_type;
+            typedef
+                typename remove_reference<
+                    typename remove_const<
+                        typename mpl::at_c<typename Env::args_type, 4>::type
+                        >::type
+                    >::type
+                context_type;
             typedef typename context_type::base_iterator_type type;
         };