diff --git a/tests/ls-2/run-test b/tests/ls-2/run-test
index 6b8301e98..da48586b3 100755
--- a/tests/ls-2/run-test
+++ b/tests/ls-2/run-test
@@ -10,4 +10,4 @@ case "$PERL" in
   ;;
 esac
 
-exec $PERL -I. -MT -- $srcdir/quoting
+exec $PERL -w -I. -MT -- $srcdir/quoting