diff --git a/grudge/dof_desc.py b/grudge/dof_desc.py
index fd3b9b605770b9bdc9dd360a3b7bfa5c308e521d..f3a567a3897a1235d56def1c500b9f56c401386a 100644
--- a/grudge/dof_desc.py
+++ b/grudge/dof_desc.py
@@ -319,6 +319,7 @@ def __getattr__(name):
 
     raise AttributeError(f"module {__name__} has no attribute {name}")
 
+
 import sys
 
 if sys.version_info < (3, 7):