diff --git a/README.rst b/README.rst
index 70def2a5bb..0924eeda2d 100644
--- a/README.rst
+++ b/README.rst
@@ -50,6 +50,11 @@ To generate a coverage report,run:
 
 (note: on some boxes, the results may not be accurate unless you run it twice)
 
+If you want to run only the tests in one file you can use testtools e.g.
+
+.. code-block:: bash
+
+    $ python -m testtools.run trove.tests.unittests.python.module.path
 
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