diff --git a/CHANGELOG b/CHANGELOG
index 6734d2e54..b16341c08 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -6,6 +6,7 @@
 - fix possible xss attacks
 - saver way to collect plugin configuration
 - fix update of postgres database
+- add hook displayPreviewThumb
 
 --------------------------------------------------------------------------------
                      Changes in version 5.1.39