diff --git a/test/Jamfile b/test/Jamfile
index 918b11a..b46dd24 100644
--- a/test/Jamfile
+++ b/test/Jamfile
@@ -1,6 +1,6 @@
 #  Boost.Mp11 Library Test Jamfile
 #
-#  Copyright 2015-2017 Peter Dimov
+#  Copyright 2015-2019 Peter Dimov
 #
 #  Distributed under the Boost Software License, Version 1.0.
 #  See accompanying file LICENSE_1_0.txt or copy at
@@ -9,7 +9,10 @@
 import testing ;
 import ../../config/checks/config : requires ;
 
-project : requirements [ requires cxx11_variadic_templates cxx11_template_aliases cxx11_decltype cxx11_hdr_tuple ] ;
+project
+  : requirements [ requires cxx11_variadic_templates cxx11_template_aliases cxx11_decltype cxx11_hdr_tuple ]
+  : default-build <warnings-as-errors>on
+  ;
 
 # include-only
 compile mp11.cpp ;