diff --git a/src/_pytest/mark/expression.py b/src/_pytest/mark/expression.py
index b81361478ae..93e784911c0 100644
--- a/src/_pytest/mark/expression.py
+++ b/src/_pytest/mark/expression.py
@@ -26,6 +26,7 @@
 from typing import NoReturn
 from typing import Optional
 from typing import Sequence
+
 from .structures import MARK_GEN