diff --git a/WHATSNEW.txt b/WHATSNEW.txt
index 5761f2e..6efcc75 100644
--- a/WHATSNEW.txt
+++ b/WHATSNEW.txt
@@ -21,9 +21,10 @@
     was always a requirement, but it was never checked or documented.
 
 - Explicit checks are now made to ensure that the configuration does
-  not do recursive .includes. Any attempt to do so will produce an
-  error and the offending line will be ignored, but the program will
-  attempt to continue processing the rest of the configuration.
+  not do circular or recursive .includes. Any attempt to do so will
+  produce an error and the offending line will be ignored, but the
+  program will attempt to continue processing the rest of the
+  configuration.
 
 - The program changes described below have made the 'ParseConfig'
   API incompatible with previous versions of 'tconfpy'.  The version