diff --git a/test/Jamfile b/test/Jamfile
index 6eca0df6b..17a631df1 100644
--- a/test/Jamfile
+++ b/test/Jamfile
@@ -19,6 +19,8 @@ lib test_common
 project
    : requirements
 	<library>test_common
+   : default-build
+	<threading>multi
    ;