diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index 10be2da..c8f9f7a 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -13,7 +13,7 @@ import testing ;
 project
   : default-build
 
-    <warnings>all
+    <warnings>extra
 
   : requirements