diff --git a/src/awkward/contents/listarray.py b/src/awkward/contents/listarray.py
index cee165cf83..b7f04eedc9 100644
--- a/src/awkward/contents/listarray.py
+++ b/src/awkward/contents/listarray.py
@@ -23,10 +23,10 @@
     Any,
     Callable,
     Final,
+    ImplementsReadOnlyProperty,
     Self,
     SupportsIndex,
     final,
-ImplementsReadOnlyProperty
 )
 from awkward._util import UNSET
 from awkward.contents.content import (