diff --git a/tests/test_shell_launcher.py b/tests/test_shell_launcher.py
index f3f7618d3..8bf5a6aa0 100644
--- a/tests/test_shell_launcher.py
+++ b/tests/test_shell_launcher.py
@@ -47,6 +47,7 @@
 
 pytestmark = pytest.mark.group_a
 
+
 class EchoHelloWorldEntity(entity.SmartSimEntity):
     """A simple smartsim entity that meets the `ExecutableProtocol` protocol"""