diff --git a/setup.py b/setup.py
index 4352b0c25..02a548f3e 100755
--- a/setup.py
+++ b/setup.py
@@ -33,6 +33,7 @@ setup(
     ],
     install_requires=install_requires,
     tests_require=install_requires,
+    test_suite='letsencrypt',
     extras_require={
         'testing': testing_extras,
     },