diff --git a/Doc/library/urllib.request.rst b/Doc/library/urllib.request.rst
index 65637fd22d3..d5f3f2c39cf 100644
--- a/Doc/library/urllib.request.rst
+++ b/Doc/library/urllib.request.rst
@@ -465,6 +465,8 @@ request.
    Remove named header from the request instance (both from regular and
    unredirected headers).
 
+   .. versionadded:: 3.4
+
 
 .. method:: Request.get_full_url()