--- a/tests/test-tag.t	Wed Nov 16 03:45:14 2011 +0100
+++ b/tests/test-tag.t	Wed Nov 16 03:45:14 2011 +0100
@@ -1,3 +1,5 @@
+  $ "$TESTDIR/hghave" system-sh || exit 80
+
   $ hg init test
   $ cd test
changeset 15519	bb9ad375b51c
parent 14162	301725c3df9a
child 15623	fc8c7a5ccc4a