diff --git a/doc/lispref/ChangeLog b/doc/lispref/ChangeLog
index 1af60a68fd2..7d81c23cef3 100644
--- a/doc/lispref/ChangeLog
+++ b/doc/lispref/ChangeLog
@@ -1,5 +1,8 @@
 2012-12-31  Glenn Morris  <rgm@gnu.org>
 
+	* customize.texi (Common Keywords, Type Keywords):
+	Replace "active field" with "button".  (Bug#13310)
+
 	* customize.texi (Common Keywords): Add xref.  (Bug#13311)
 	* tips.texi (Library Headers): Add cindex.
 
diff --git a/doc/lispref/customize.texi b/doc/lispref/customize.texi
index 9819d8a8b3f..c3de589b01f 100644
--- a/doc/lispref/customize.texi
+++ b/doc/lispref/customize.texi
@@ -77,7 +77,7 @@ item.  Please don't overdo this, since the result would be annoying.
 @item :link @var{link-data}
 @kindex link@r{, customization keyword}
 Include an external link after the documentation string for this item.
-This is a sentence containing an active field which references some
+This is a sentence containing a button that references some
 other documentation.
 
 There are several alternatives you can use for @var{link-data}:
@@ -1080,8 +1080,7 @@ Substitute the item's documentation string.
 
 @item %h
 Like @samp{%d}, but if the documentation string is more than one line,
-add an active field to control whether to show all of it or just the
-first line.
+add a button to control whether to show all of it or just the first line.
 
 @item %t
 Substitute the tag here.  You specify the tag with the @code{:tag}