diff --git a/help/extensions.txt b/help/extensions.txt
--- a/help/extensions.txt
+++ b/help/extensions.txt
@@ -28,6 +28,6 @@ scope, prepend its path with !::
 
   [extensions]
   # disabling extension bar residing in /path/to/extension/bar.py
-  hgext.bar = !/path/to/extension/bar.py
+  bar = !/path/to/extension/bar.py
   # ditto, but no path was supplied for extension baz
-  hgext.baz = !
+  baz = !