diff --git a/docs/changes.txt b/docs/changes.txt
index ff33354dd8..e9a61cdf66 100644
--- a/docs/changes.txt
+++ b/docs/changes.txt
@@ -100,6 +100,7 @@ OTHER CHANGES
 Unix:
 
 - wxTaskBarIcon now supports freedesktop.org System Tray protocol
+- security fixes to wxSingleInstanceChecker
 
 
 2.5.2