--- a/tests/test-tags.t	Mon Nov 07 03:14:54 2011 +0100
+++ b/tests/test-tags.t	Mon Nov 07 03:14:55 2011 +0100
@@ -1,3 +1,5 @@
+  $ "$TESTDIR/hghave" unix-permissions || exit 80
+
 Helper functions:
 
   $ cacheexists() {