diff --git a/CHANGELOG.md b/CHANGELOG.md
index b58ce38a8a31..d4e4ffab6384 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,8 @@
 
 - [BUGFIX] Validate logs config when using logs_instance with automatic logging processor (@mapno)
 
+- [BUGFIX] Operator: Fix MetricsInstance Service port (@hjet)
+
 - [CHANGE] Self-scraped integrations will now use an SUO-specific value for the `instance` label. (@rfratto)
 
 # v0.20.0 (2021-10-28)
diff --git a/pkg/operator/resources_metrics.go b/pkg/operator/resources_metrics.go
index f649fc4be25c..b5f67a87fa1c 100644
--- a/pkg/operator/resources_metrics.go
+++ b/pkg/operator/resources_metrics.go
@@ -71,7 +71,7 @@ func generateMetricsStatefulSetService(cfg *Config, d config.Deployment) *v1.Ser
 			ClusterIP: "None",
 			Ports: []v1.ServicePort{{
 				Name:       d.Agent.Spec.PortName,
-				Port:       9090,
+				Port:       8080,
 				TargetPort: intstr.FromString(d.Agent.Spec.PortName),
 			}},
 			Selector: map[string]string{