diff --git a/tests/unit/test_connection.py b/tests/unit/test_connection.py
index 389ec326..ec9e1a3f 100644
--- a/tests/unit/test_connection.py
+++ b/tests/unit/test_connection.py
@@ -358,7 +358,6 @@ class ConnectionHeartbeatTest(unittest.TestCase):
         self.assertEqual(max_connection.send_msg.call_count, 0)
         self.assertEqual(max_connection.send_msg.call_count, 0)
         max_connection.defunct.assert_has_calls([call(ANY)] * get_holders.call_count)
-        holder.shutdown_on_error = True
         holder.return_connection.assert_has_calls(
             [call(max_connection)] * get_holders.call_count)
 
@@ -388,7 +387,6 @@ class ConnectionHeartbeatTest(unittest.TestCase):
         exc = connection.defunct.call_args_list[0][0][0]
         self.assertIsInstance(exc, ConnectionException)
         self.assertRegexpMatches(exc.args[0], r'^Received unexpected response to OptionsMessage.*')
-        holder.shutdown_on_error = True
         holder.return_connection.assert_has_calls(
             [call(connection)] * get_holders.call_count)
 
@@ -419,7 +417,6 @@ class ConnectionHeartbeatTest(unittest.TestCase):
         self.assertIsInstance(exc, OperationTimedOut)
         self.assertEqual(exc.errors, 'Connection heartbeat timeout after 0.05 seconds')
         self.assertEqual(exc.last_host, 'localhost')
-        holder.shutdown_on_error = True
         holder.return_connection.assert_has_calls(
             [call(connection)] * get_holders.call_count)