diff --git a/WHATSNEW.txt b/WHATSNEW.txt
index a00306e..c1ea1fa 100644
--- a/WHATSNEW.txt
+++ b/WHATSNEW.txt
@@ -9,7 +9,7 @@
   default if the user set it that way in the $TSSHBATCH environment
   variable.
 
-- It is now possible to subsitute the name of the current host into
+- It is now possible to substitute the name of the current host into
   either commands or file transfer specifications via the '<HOSTNAME>'
   and '<HOSTSHORT>' strings.  This allows commands and/or file
   transfers to behave in a host-specific manner.