diff --git a/doc/ack.texi b/doc/ack.texi
index cc6ec5083..0022c1138 100644
--- a/doc/ack.texi
+++ b/doc/ack.texi
@@ -29,7 +29,7 @@ Bugfixes, documentation, encouragement, and code has been contributed by:
 @email{e96_lho@@e.kth.se}
 @item Magnus Ahltorp
 @email{map@@stacken.kth.se}
-@item Marc Eichin
+@item Mark Eichin
 @email{eichin@@cygnus.com}
 @item Marc Horowitz
 @email{marc@@cygnus.com}