diff --git a/doc/lispref/ChangeLog b/doc/lispref/ChangeLog
index 12539758018..76831379c44 100644
--- a/doc/lispref/ChangeLog
+++ b/doc/lispref/ChangeLog
@@ -1,3 +1,7 @@
+2008-02-07  Jan Dj,Ad(Brv  <jan.h.d@swipnet.se>
+
+	* keymaps.texi (Tool Bar): Document rtl property.
+
 2008-01-27  Thien-Thi Nguyen  <ttn@gnuvola.org>
 
 	* display.texi (Button Types):
diff --git a/doc/lispref/keymaps.texi b/doc/lispref/keymaps.texi
index 7f3c7a466c9..125c4f0e706 100644
--- a/doc/lispref/keymaps.texi
+++ b/doc/lispref/keymaps.texi
@@ -2606,6 +2606,10 @@ If @var{image} is a single image specification, Emacs draws the tool bar
 button in disabled state by applying an edge-detection algorithm to the
 image.
 
+The @code{:rtl} property specifies an alternative image to use for
+right-to-left languages.  Only the Gtk+ version of Emacs supports this
+at present.
+
 The default tool bar is defined so that items specific to editing do not
 appear for major modes whose command symbol has a @code{mode-class}
 property of @code{special} (@pxref{Major Mode Conventions}).  Major