diff --git a/python/dune/codegen/tools.py b/python/dune/codegen/tools.py
index a27ee13384d62697bc984a33819b09e9982c4a39..3374cc71e6fb992ea9525c3ead52cd723558807d 100644
--- a/python/dune/codegen/tools.py
+++ b/python/dune/codegen/tools.py
@@ -19,7 +19,6 @@ class ImmutableCuttingRecord(pytools.ImmutableRecord):
         return type(self) == type(other) and all(getattr(self, field) == getattr(other, field) for field in self.__class__.fields if not field.startswith("_"))
 
 
-
 def get_pymbolic_basename(expr):
     assert isinstance(expr, prim.Expression), "Type: {}, expr: {}".format(type(expr), expr)