diff --git a/doc/misc/ChangeLog b/doc/misc/ChangeLog
index 450788c5c1e..24fb119b03a 100644
--- a/doc/misc/ChangeLog
+++ b/doc/misc/ChangeLog
@@ -1,3 +1,8 @@
+2009-09-13  Chong Yidong  <cyd@stupidchicken.com>
+
+	* dired-x.texi (Technical Details): Delete
+	dired-up-directory (Bug#4292).
+
 2009-09-03  Michael Albinus  <michael.albinus@gmx.de>
 
 	* tramp.texi (Frequently Asked Questions): New item for
diff --git a/doc/misc/dired-x.texi b/doc/misc/dired-x.texi
index 56e2c86d1e9..338e820e26a 100644
--- a/doc/misc/dired-x.texi
+++ b/doc/misc/dired-x.texi
@@ -209,8 +209,6 @@ from @file{dired.el}
 @code{dired-find-buffer-nocreate}
 @item
 @code{dired-initial-position}
-@item
-@code{dired-up-directory}
 @end itemize
 
 @noindent