diff --git a/CHANGELOG.md b/CHANGELOG.md
index 74ba509f..639dbc69 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 
 * [ENHANCEMENT] Added `newCompactorStatefulSet()` function to create a custom statefulset for the compactor. #287
 * [ENHANCEMENT] Added option to configure compactor job name used in dashboards and alerts. #287
+* [BUGFIX] Fixed `CortexCompactorRunFailed` false positives. #288
 
 ## 1.8.0 / 2021-03-25
 
diff --git a/cortex-mixin/alerts/compactor.libsonnet b/cortex-mixin/alerts/compactor.libsonnet
index a2615e04..c8ac434a 100644
--- a/cortex-mixin/alerts/compactor.libsonnet
+++ b/cortex-mixin/alerts/compactor.libsonnet
@@ -67,7 +67,7 @@
           // Alert if compactor fails.
           alert: 'CortexCompactorRunFailed',
           expr: |||
-            increase(cortex_compactor_runs_failed_total[2h]) > 1
+            increase(cortex_compactor_runs_failed_total[2h]) >= 2
           |||,
           labels: {
             severity: 'critical',