Minor fix - change attribute to be prevent_auto rather than preserve_auto

1 files changed, 1 insertions, 1 deletions

diff --git a/docs/narr/viewconfig.rst b/docs/narr/viewconfig.rst
index 03000629c..d1188eaec 100644
--- a/docs/narr/viewconfig.rst
+++ b/docs/narr/viewconfig.rst
@@ -926,7 +926,7 @@ there's a ``should_cache`` GET or POST variable:
        return response
 
 Note that the ``http_cache`` machinery will overwrite or add to caching
-headers you set within the view itself unless you use ``preserve_auto``.
+headers you set within the view itself unless you use ``prevent_auto``.
 
 You can also turn of the effect of ``http_cache`` entirely for the duration
 of a Pyramid application lifetime.  To do so, set the