diff --git a/lxml-stubs/etree.pyi b/lxml-stubs/etree.pyi
index ed2356c..f182d67 100644
--- a/lxml-stubs/etree.pyi
+++ b/lxml-stubs/etree.pyi
@@ -318,7 +318,9 @@ class _Attrib:
     def __getitem__(self, key: _AnyStr) -> _AnyStr: ...
     def __bool__(self) -> bool: ...
     def __len__(self) -> int: ...
-    def get(self, key: _AnyStr, default: _AnyStr = ...) -> Optional[_AnyStr]: ...
+    def get(
+        self, key: _AnyStr, default: Optional[_AnyStr] = ...
+    ) -> Optional[_AnyStr]: ...
     def keys(self) -> _ListAnyStr: ...
     def __iter__(self) -> Iterator[_AnyStr]: ...  # actually _AttribIterator
     def iterkeys(self) -> Iterator[_AnyStr]: ...