diff --git a/letsencrypt/tests/hook_test.py b/letsencrypt/tests/hook_test.py
index c491cd58b..671ea3fc8 100644
--- a/letsencrypt/tests/hook_test.py
+++ b/letsencrypt/tests/hook_test.py
@@ -85,18 +85,15 @@ class HookTest(unittest.TestCase):
     @mock.patch('letsencrypt.hooks.logger.error')
     @mock.patch('letsencrypt.hooks.Popen')
     def test_run_hook(self, mock_popen, mock_error):
-        
         mock_cmd = mock.MagicMock()
         mock_cmd.returncode = 1
         mock_cmd.communicate.return_value = ("", "")
         mock_popen.return_value = mock_cmd
         hooks._run_hook("ls")
         self.assertEqual(mock_error.call_count, 1)
-
-
-        
-
-        
+        mock_cmd.communicate.return_value = ("", "thing")
+        hooks._run_hook("ls")
+        self.assertEqual(mock_error.call_count, 2)
 
 
 if __name__ == '__main__':