diff --git a/Doc/library/dataclasses.rst b/Doc/library/dataclasses.rst index 9835c480d0ea55..e9af20a04af167 100644 --- a/Doc/library/dataclasses.rst +++ b/Doc/library/dataclasses.rst @@ -533,7 +533,7 @@ Mutable default values class C: x = [] def add(self, element): - self.x += element + self.x.append(element) o1 = C() o2 = C()