diff --git a/tests/unit/pubsub_v1/publisher/test_publisher_client.py b/tests/unit/pubsub_v1/publisher/test_publisher_client.py
index 9f9cfc703..a8f1780e1 100644
--- a/tests/unit/pubsub_v1/publisher/test_publisher_client.py
+++ b/tests/unit/pubsub_v1/publisher/test_publisher_client.py
@@ -344,6 +344,7 @@ def test_publish_with_ordering_key_with_no_retry(creds):
     # Check the retry settings used for the batch.
     batch_class.assert_called_once()
 
+
 def test_publish_attrs_bytestring(creds):
     client = publisher.Client(credentials=creds)