diff --git a/CHANGELOG.md b/CHANGELOG.md
index c33357a391..fe59e1ba92 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,10 @@ We use *breaking* word for marking changes that are not backward compatible (rel
 
 ## Unreleased
 
+### Fixed
+
+- [#TODO](https://github.com/thanos-io/thanos/pull/#TODO) Ruler: Fixed Issue #2204 bug in alert queue signalling filled up queue and alerts were dropped
+
 ## [v0.11.0](https://github.com/thanos-io/thanos/releases/tag/v0.11.0-rc.1) - 2020.03.02
 
 ### Fixed