diff --git a/ChangeLog.adoc b/ChangeLog.adoc
index 2da2d9c6b..350a088db 100644
--- a/ChangeLog.adoc
+++ b/ChangeLog.adoc
@@ -20,7 +20,7 @@ https://weechat.org/files/releasenotes/ReleaseNotes-devel.html[release notes]
 
 Bug fixes::
 
-  * relay: fix crash when decoding a malformed websocket frame
+  * relay: fix crash when decoding a malformed websocket frame (CVE-2021-40516)
 
 [[v3.2]]
 == Version 3.2 (2021-06-13)