diff --git a/test/is_convertible_test.cpp b/test/is_convertible_test.cpp
index 3872e99..6f085ff 100644
--- a/test/is_convertible_test.cpp
+++ b/test/is_convertible_test.cpp
@@ -30,7 +30,7 @@ template<typename T>
 struct test_bug_4530
 {
 	template<typename A>
-	test_bug_4530(A&&, typename boost::enable_if<boost::is_convertible<A&&, T> >::type* =0);
+	test_bug_4530(A&&, typename boost::enable_if<::tt::is_convertible<A&&, T> >::type* =0);
 };
 
 struct A4530
diff --git a/test/remove_const_test.cpp b/test/remove_const_test.cpp
index f386858..0271130 100644
--- a/test/remove_const_test.cpp
+++ b/test/remove_const_test.cpp
@@ -33,7 +33,7 @@ BOOST_DECL_TRANSFORM_TEST(remove_const_test_19, ::tt::remove_const, (*const), (*
 struct S
 {
    template<typename T>
-   typename boost::remove_const<T>::type *operator=(T const &) const { return 0; }
+   typename ::tt::remove_const<T>::type *operator=(T const &) const { return 0; }
 };
 
 void bar() {}