diff --git a/tests/test_kernelapp.py b/tests/test_kernelapp.py
index 12e29a0a..9ea63a07 100644
--- a/tests/test_kernelapp.py
+++ b/tests/test_kernelapp.py
@@ -12,6 +12,7 @@
 from .conftest import MockKernel
 from .utils import TemporaryWorkingDirectory
 
+
 @pytest.mark.skipif(os.name == "nt", reason="requires ipc")
 def test_init_ipc_socket():
     app = IPKernelApp(transport="ipc")