diff --git a/src/ChangeLog b/src/ChangeLog
index 5cdbd528a2e3eed0bfde6aa6599b563966875d8e..a56bb49da00f3f6011e7959eb61a8202d2396380 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -3,6 +3,8 @@
 	* window.c (Vwindow_combination_resize)
 	(Vwindow_combination_limit): Use t instead of non-nil in
 	doc-strings.
+	(Vrecenter_redisplay): Add first sentence of doc-string on
+	separate line.
 
 2011-12-11  Kenichi Handa  <handa@m17n.org>
 
diff --git a/src/window.c b/src/window.c
index f007aaf52cd9be29a528d8f82819a6a22d5a0a20..4711dc8ff532191e90abc08a2e5dc3b5727a2b24 100644
--- a/src/window.c
+++ b/src/window.c
@@ -6500,9 +6500,10 @@ with the relevant frame selected.  */);
   Vwindow_configuration_change_hook = Qnil;
 
   DEFVAR_LISP ("recenter-redisplay", Vrecenter_redisplay,
-	       doc: /* If non-nil, then the `recenter' command with a nil argument
-will redraw the entire frame; the special value `tty' causes the
-frame to be redrawn only if it is a tty frame.  */);
+	       doc: /* Non-nil means `recenter' redraws entire frame.
+If this option is non-nil, then the `recenter' command with a nil
+argument will redraw the entire frame; the special value `tty' causes
+the frame to be redrawn only if it is a tty frame.  */);
   Vrecenter_redisplay = Qtty;
 
   DEFVAR_LISP ("window-combination-resize", Vwindow_combination_resize,