diff --git a/Doc/tutorial/datastructures.rst b/Doc/tutorial/datastructures.rst
index 88ab3729602..a2edca183db 100644
--- a/Doc/tutorial/datastructures.rst
+++ b/Doc/tutorial/datastructures.rst
@@ -229,8 +229,6 @@ Don't use this example's definition of :func:`sum`: since summing numbers is
 such a common need, a built-in function ``sum(sequence)`` is already provided,
 and works exactly like this.
 
-.. versionadded:: 2.3
-
 
 List Comprehensions
 -------------------