2 files changed, 2 insertions, 1 deletions

diff --git a/doc/lispref/ChangeLog b/doc/lispref/ChangeLog
index e946f98c9d0..d3ea6b24311 100644
--- a/doc/lispref/ChangeLog
+++ b/doc/lispref/ChangeLog
@@ -1,6 +1,6 @@
 2013-10-18  Xue Fuqiao  <xfq.free@gmail.com>
 
-        * display.texi (Line Height): Add an index for line height.
+        * display.texi (Line Height): Add indexes for line height.
 
 2013-10-17  Xue Fuqiao  <xfq.free@gmail.com>
 
diff --git a/doc/lispref/display.texi b/doc/lispref/display.texi
index 40fd1615729..481e4a887d5 100644
--- a/doc/lispref/display.texi
+++ b/doc/lispref/display.texi
@@ -1847,6 +1847,7 @@ First Emacs uses @var{height} as a height spec to control extra space
 to bring the total line height up to @var{total}.  In this case, the
 other ways to specify the line spacing are ignored.
 
+@cindex height spec
   Any other kind of property value is a height spec, which translates
 into a number---the specified line height.  There are several ways to
 write a height spec; here's how each of them translates into a number: