diff --git a/tests/test_awslambda/test_lambda.py b/tests/test_awslambda/test_lambda.py
index 2f47b6284..d57722074 100644
--- a/tests/test_awslambda/test_lambda.py
+++ b/tests/test_awslambda/test_lambda.py
@@ -1134,7 +1134,7 @@ def test_invoke_function_from_sqs_exception():
             if 'I failed!' in event['message']:
                 messages = queue.receive_messages(MaxNumberOfMessages=10)
                 # Verify messages are still visible and unprocessed
-                assert len(messages) is 3
+                assert len(messages) == 3
                 return
         time.sleep(1)