diff --git a/test/variant_trivial.cpp b/test/variant_trivial.cpp
index b9f3d1f..1540bc4 100644
--- a/test/variant_trivial.cpp
+++ b/test/variant_trivial.cpp
@@ -37,8 +37,6 @@ template<template<class...> class L, class T1, class... T> struct mp_power_set_i
 
 //
 
-using namespace boost::variant2;
-
 struct D
 {
     ~D() noexcept {}
@@ -84,20 +82,23 @@ struct MA2
     MA2& operator=( MA2 && ) = delete;
 };
 
+using namespace boost::variant2;
+namespace v2d = boost::variant2::detail;
+
 struct test
 {
     template<class... T> void operator()( mp_list<T...> ) const noexcept
     {
         using U = mp_inherit<T...>;
 
-        BOOST_TEST_EQ( std::is_trivially_copy_constructible<variant<U>>::value, std::is_trivially_copy_constructible<U>::value );
-        BOOST_TEST_EQ( std::is_trivially_copy_assignable<variant<U>>::value, std::is_trivially_destructible<U>::value && std::is_trivially_copy_constructible<U>::value && std::is_trivially_copy_assignable<U>::value );
+        BOOST_TEST_EQ( v2d::is_trivially_copy_constructible<variant<U>>::value, v2d::is_trivially_copy_constructible<U>::value );
+        BOOST_TEST_EQ( v2d::is_trivially_copy_assignable<variant<U>>::value, std::is_trivially_destructible<U>::value && v2d::is_trivially_copy_constructible<U>::value && v2d::is_trivially_copy_assignable<U>::value );
         BOOST_TEST_EQ( std::is_trivially_destructible<variant<U>>::value, std::is_trivially_destructible<U>::value );
 
 #if !BOOST_WORKAROUND(BOOST_LIBSTDCXX_VERSION, < 50000)
 
-        BOOST_TEST_EQ( std::is_trivially_move_constructible<variant<U>>::value, std::is_trivially_move_constructible<U>::value );
-        BOOST_TEST_EQ( std::is_trivially_move_assignable<variant<U>>::value, std::is_trivially_destructible<U>::value && std::is_trivially_move_constructible<U>::value && std::is_trivially_move_assignable<U>::value );
+        BOOST_TEST_EQ( v2d::is_trivially_move_constructible<variant<U>>::value, v2d::is_trivially_move_constructible<U>::value );
+        BOOST_TEST_EQ( v2d::is_trivially_move_assignable<variant<U>>::value, std::is_trivially_destructible<U>::value && v2d::is_trivially_move_constructible<U>::value && v2d::is_trivially_move_assignable<U>::value );
 
 #endif
     }