diff --git a/CHANGELOG.md b/CHANGELOG.md
index ad847de93f..6ec7a05d49 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -25,6 +25,7 @@
 * [ENHANCEMENT] Memberlist: optimized receive path for processing ring state updates, to help reduce CPU utilization in large clusters. #4345
 * [ENHANCEMENT] Memberlist: expose configuration of memberlist packet compression via `-memberlist.compression=enabled`. #4346
 * [BUGFIX] HA Tracker: when cleaning up obsolete elected replicas from KV store, tracker didn't update number of cluster per user correctly. #4336
+* [BUGFIX] Ruler: fixed counting of PromQL evaluation errors as user-errors when updating `cortex_ruler_queries_failed_total`. #4335
 
 ## 1.10.0-rc.0 / 2021-06-28