--- longtable.orig      2004-03-13 21:37:06.000000000 -0500
+++ longtable.sty       2008-10-10 16:32:25.000000000 -0400
@@ -55,6 +55,7 @@
 \newcount\LTchunksize \LTchunksize=20
 \let\c@LTchunksize\LTchunksize
 \newdimen\LTcapwidth  \LTcapwidth=4in
+\newlength\LTextracouponspace
 \newbox\LT@head
 \newbox\LT@firsthead
 \newbox\LT@foot
@@ -146,6 +147,7 @@
   \advance\dimen@ \ht\ifvoid\LT@firsthead\LT@head\else\LT@firsthead\fi
   \advance\dimen@ \dp\ifvoid\LT@firsthead\LT@head\else\LT@firsthead\fi
   \advance\dimen@ \ht\LT@foot
+  \advance\dimen@ \LTextracouponspace
   \dimen@ii\vfuzz
   \vfuzz\maxdimen
     \setbox\tw@\copy\z@