diff --git a/Make b/Make
index 59bf91127d..c1e1f61ad6 100755
--- a/Make
+++ b/Make
@@ -56,7 +56,7 @@ do
 done
 
 Wall="-Wall -Wvla -Wdeclaration-after-statement -Wno-format-zero-length${Wall+ $Wall}"
-tests= jobs= skip= oldtest= with_dash= testpen=
+tests= jobs= skip= oldtest= with_dash=y testpen=
 clean=:
 
 case `uname` in