diff --git a/tests/app/aws/test_s3.py b/tests/app/aws/test_s3.py
index 65e290fc0..c37789fa4 100644
--- a/tests/app/aws/test_s3.py
+++ b/tests/app/aws/test_s3.py
@@ -678,5 +678,6 @@ def test_test_with_bom_header(mock_app):
     expected = {0: "15555555555"}
     assert result == expected
 
+
 if __name__ == "__main__":
     test_valid_csv()