--- maintaining.texi.~1.22.~	2009-11-29 08:42:21.000000000 +1100
+++ maintaining.texi	2010-02-20 10:32:11.000000000 +1100
@@ -1593,7 +1593,8 @@
 In Lisp code, any function defined with @code{defun}, any variable
 defined with @code{defvar} or @code{defconst}, and in general the first
 argument of any expression that starts with @samp{(def} in column zero is
-a tag.
+a tag.  The @option{--declarations} option tags declarations
+@code{(defvar foo)} as well as definitions.
 
 @item
 In Scheme code, tags include anything defined with @code{def} or with a