diff --git a/prism/CHANGELOG.txt b/prism/CHANGELOG.txt
index 24ffacdf..63bf6983 100644
--- a/prism/CHANGELOG.txt
+++ b/prism/CHANGELOG.txt
@@ -2,6 +2,7 @@ This file contains details of the changes in each new version of PRISM.
 
 New since last release:
 
+* Some new '-help xxx' switches
 * New -exportmodel and -importmodel convenience switches
 * Allow command-line switches of form --sw (as well as -sw)
 * Parametric model checking