diff --git a/tests/system/conftest.py b/tests/system/conftest.py
index ded331f9cb..e7f535c74b 100644
--- a/tests/system/conftest.py
+++ b/tests/system/conftest.py
@@ -19,7 +19,7 @@
 import os
 import pytest
 
-from google.api_core.client_options import ClientOptions # type: ignore
+from google.api_core.client_options import ClientOptions  # type: ignore
 from google.auth import credentials
 from google.showcase import EchoClient
 from google.showcase import IdentityClient