diff --git a/doc/en/example/parametrize.rst b/doc/en/example/parametrize.rst
index 0b94e425c..1220cfb4d 100644
--- a/doc/en/example/parametrize.rst
+++ b/doc/en/example/parametrize.rst
@@ -678,4 +678,4 @@ Or, if desired, you can ``pip install contextlib2`` and use:
 
 .. code-block:: python
 
-    from contextlib2 import ExitStack as does_not_raise
+    from contextlib2 import nullcontext as does_not_raise