diff --git a/CHANGELOG.md b/CHANGELOG.md
index 68d7fd9ac9e..828f8ae20a4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,8 +4,8 @@
 
 ### Grafana Mimir
 
-* [CHANGE] Ruler: Add `cortex_prometheus_rule_group_last_rule_duration_sum_seconds` metric to track the total evalation duration of a rule group regardless of concurrency #10189
-* [BUGFIX] Ruler: Prevent flapping (enabled/disabled) of the concurrency feature #10189
+* [ENHANCEMENT] Ruler: Add `cortex_prometheus_rule_group_last_rule_duration_sum_seconds` metric to track the total evalation duration of a rule group regardless of concurrency #10189
+* [BUGFIX] Ruler: Fixed an issue when using the experimental `-ruler.max-independent-rule-evaluation-concurrency` feature, where if a rule group was eligible for concurrency, it would flap between running concurrently or not based on the time it took after running concurrently. #9726 #10189
 
 ## 2.15.0-rc.0
 
diff --git a/pkg/ruler/manager_metrics.go b/pkg/ruler/manager_metrics.go
index 5dda0feefa8..784b07340f3 100644
--- a/pkg/ruler/manager_metrics.go
+++ b/pkg/ruler/manager_metrics.go
@@ -164,7 +164,7 @@ func (m *ManagerMetrics) Collect(out chan<- prometheus.Metric) {
 	data.SendSumOfGaugesPerTenant(out, m.GroupInterval, "prometheus_rule_group_interval_seconds", dskit_metrics.WithLabels("rule_group"))
 	data.SendSumOfGaugesPerTenant(out, m.GroupLastEvalTime, "prometheus_rule_group_last_evaluation_timestamp_seconds", dskit_metrics.WithLabels("rule_group"))
 	data.SendSumOfGaugesPerTenant(out, m.GroupLastDuration, "prometheus_rule_group_last_duration_seconds", dskit_metrics.WithLabels("rule_group"))
-	data.SendSumOfGaugesPerTenant(out, m.GroupLastRuleDurationSum, "cortex_prometheus_rule_group_last_rule_duration_sum_seconds", dskit_metrics.WithLabels("rule_group"))
+	data.SendSumOfGaugesPerTenant(out, m.GroupLastRuleDurationSum, "prometheus_rule_group_last_rule_duration_sum_seconds", dskit_metrics.WithLabels("rule_group"))
 	data.SendSumOfGaugesPerTenant(out, m.GroupRules, "prometheus_rule_group_rules", dskit_metrics.WithLabels("rule_group"))
 	data.SendSumOfGaugesPerTenant(out, m.GroupLastEvalSamples, "prometheus_rule_group_last_evaluation_samples", dskit_metrics.WithLabels("rule_group"))
 }