diff --git a/kubernetes/e2e_test/test_client.py b/kubernetes/e2e_test/test_client.py
index 1ad0deb02..6700a05c2 100644
--- a/kubernetes/e2e_test/test_client.py
+++ b/kubernetes/e2e_test/test_client.py
@@ -221,7 +221,7 @@ class TestClient(unittest.TestCase):
             self.assertIsNone(client.returncode)
             client.run_forever(timeout=10)
             self.assertEqual(client.returncode, value)
-            self.assertEqual(client.returncode, value)
+            self.assertEqual(client.returncode, value)  # check idempotence
 
         resp = api.delete_namespaced_pod(name=name, body={},
                                          namespace='default')