diff --git a/docs/reference/ChangeLog b/docs/reference/ChangeLog
index 5f5b083cdb..c1a1af85c3 100644
--- a/docs/reference/ChangeLog
+++ b/docs/reference/ChangeLog
@@ -1,5 +1,8 @@
 2005-04-07  Matthias Clasen  <mclasen@redhat.com>
 
+	* gtk/tmpl/gtkbbox.sgml: Document that GtkButtonBox ignores
+	the homogeneous property.  (#171412, Morten Welinder)
+
 	* gtk/tmpl/gtkfilechooser.sgml: Add a paragraph about
 	shortcut terminology.  (#166906, Sebastien Bacher)
 
diff --git a/docs/reference/gtk/tmpl/gtkbbox.sgml b/docs/reference/gtk/tmpl/gtkbbox.sgml
index 1133fa6164..19d6dc39cb 100644
--- a/docs/reference/gtk/tmpl/gtkbbox.sgml
+++ b/docs/reference/gtk/tmpl/gtkbbox.sgml
@@ -29,7 +29,9 @@ used to spread the buttons in a button box across the container, respectively.
 </para>
 
 <para>
-
+The main purpose of GtkButtonBox is to make sure the children have all the same size.
+Therefore it ignores the homogeneous property which it inherited from GtkBox, and always
+behaves as if homogeneous was %TRUE.
 </para>
 
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