diff --git a/CHANGELOG.md b/CHANGELOG.md
index 15477e6422..1391845101 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,7 +18,7 @@
 * [CHANGE] Prevent path traversal attack from users able to control the HTTP header `X-Scope-OrgID`. #4375 (CVE-2021-36157)
   * Users only have control of the HTTP header when Cortex is not frontend by an auth proxy validating the tenant IDs
 * [CHANGE] Some files and directories created by Mimir components on local disk now have stricter permissions, and are only readable by owner, but not group or others. #4394
-* [CHANGE] Compactor: compactor will no longer try to compact blocks that are already marked for deletion. Previously compactor would consider blocks marked for deletion within `-compactor.deletion-delay / 2` period as eligible for compaction.
+* [CHANGE] Compactor: compactor will no longer try to compact blocks that are already marked for deletion. Previously compactor would consider blocks marked for deletion within `-compactor.deletion-delay / 2` period as eligible for compaction. #4328
 * [ENHANCEMENT] Add timeout for waiting on compactor to become ACTIVE in the ring. #4262
 * [ENHANCEMENT] Reduce memory used by streaming queries, particularly in ruler. #4341
 * [ENHANCEMENT] Ring: allow experimental configuration of disabling of heartbeat timeouts by setting the relevant configuration value to zero. Applies to the following: #4342