diff --git a/changelog.txt b/changelog.txt
index dfb1a5a9..2430d5f1 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -4,7 +4,7 @@ OPENSEADRAGON CHANGELOG
 1.2.1: (in progress)
 
 * Exposed secondary pointer button (middle, right, etc.) events from MouseTracker and through viewer (#479)
-* MouseTracker - Improved IE 8 compatibility
+* MouseTracker - Improved IE 8 compatibility (#562)
 
 1.2.0: