diff --git a/neutron/tests/tempest/README.rst b/neutron/tests/tempest/README.rst
new file mode 100644
index 0000000..bc57df4
--- /dev/null
+++ b/neutron/tests/tempest/README.rst
@@ -0,0 +1,6 @@
+WARNING
+=======
+
+The files under this path are maintained automatically by the script
+tools/copy_api_tests_from_tempest.sh.  It's contents should not be
+manually modified until further notice.