diff --git a/include/sqlpp11/multi_column.h b/include/sqlpp11/multi_column.h
index 52de9d5f..ac09881c 100644
--- a/include/sqlpp11/multi_column.h
+++ b/include/sqlpp11/multi_column.h
@@ -76,7 +76,7 @@ namespace sqlpp
 	template<typename AliasProvider, typename... Columns>
 		struct multi_column_alias_t
 		{
-			using _traits = make_traits<no_value_t, tag::alias, tag::named_expression>;
+			using _traits = make_traits<no_value_t, tag::alias, tag::multi_column, tag::named_expression>;
 			using _recursive_traits = make_recursive_traits<Columns...>;
 
 			static_assert(detail::all_t<is_named_expression_t<Columns>::value...>::value, "multi_column parameters need to be named expressions");
diff --git a/include/sqlpp11/select_column_list.h b/include/sqlpp11/select_column_list.h
index c24da000..0aab60ff 100644
--- a/include/sqlpp11/select_column_list.h
+++ b/include/sqlpp11/select_column_list.h
@@ -269,6 +269,7 @@ namespace sqlpp
 						_alias_t<AliasProvider> as(const AliasProvider& aliasProvider) const
 						{
 							static_assert(Policies::_can_be_used_as_table::value, "statement cannot be used as table, e.g. due to missing tables");
+							static_assert(::sqlpp::detail::none_t<is_multi_column_t<Columns>::value...>::value, "cannot use multi-columns in sub selects");
 							return _table_t<AliasProvider>(_get_statement()).as(aliasProvider);
 						}
 
diff --git a/tests/SelectTypeTest.cpp b/tests/SelectTypeTest.cpp
index 2361a623..f709947a 100644
--- a/tests/SelectTypeTest.cpp
+++ b/tests/SelectTypeTest.cpp
@@ -290,11 +290,8 @@ int main()
 	{
 		auto m = multi_column(t.alpha, t.beta).as(alias::a);
 		static_assert(not sqlpp::is_expression_t<decltype(m)>::value, "a multi_column is not a value");
-
-#warning: A multicolumn cannot be used if the select is to be used like a table
-		auto a = select(m).from(t).as(alias::b).a;
-		//static_assert(not sqlpp::is_expression_t<decltype(a)>::value, "a multi_column is not a value");
 	}
+
 	// Test that result sets with identical name/value combinations have identical types
 	{
 		auto a = select(t.alpha);