diff --git a/concept_check_test.cpp b/concept_check_test.cpp
index 5c443f9..4d631f7 100644
--- a/concept_check_test.cpp
+++ b/concept_check_test.cpp
@@ -123,8 +123,6 @@ main()
   {
     typedef binary_predicate_archetype<int, int> F;
     function_requires< BinaryPredicateConcept<F, int, int> >();
-    typedef const_binary_predicate_archetype<int, int> const_F;
-    function_requires< Const_BinaryPredicateConcept<const_F, int, int> >();
   }
 
   //===========================================================================