diff --git a/changelog.txt b/changelog.txt
index 47355b56..f66a1eda 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -4,6 +4,7 @@ OPENSEADRAGON CHANGELOG
 1.1.2: (in progress)
 
 * Fix for IIPServer-style urls when using DZI (#413)
+* Fix memory leak while destroying the viewer (#421)
 
 1.1.1: