--- control.texi.~1.7.~	2009-02-24 08:41:24.000000000 +1100
+++ control.texi	2009-11-02 15:26:38.000000000 +1100
@@ -1019,7 +1019,11 @@
 . @var{data})}.  The handler can refer to this list to decide what to
 do.  For example, if the error is for failure opening a file, the file
 name is the second element of @var{data}---the third element of the
-error description.
+error description.  The handler can re-signal the error with
+
+@example
+(signal (car var) (cdr var))  ;; re-signal
+@end example
 
 If @var{var} is @code{nil}, that means no variable is bound.  Then the
 error symbol and associated data are not available to the handler.