diff --git a/pkg/infra/metrics/service.go b/pkg/infra/metrics/service.go
index 6b7f1d2354f..3a964dfc58f 100644
--- a/pkg/infra/metrics/service.go
+++ b/pkg/infra/metrics/service.go
@@ -66,7 +66,7 @@ func ProvideRegisterer() prometheus.Registerer {
 
 func ProvideGatherer() prometheus.Gatherer {
 	k8sGatherer := newAddPrefixWrapper(legacyregistry.DefaultGatherer)
-	return newMultiRegistry(k8sGatherer, prometheus.DefaultGatherer)
+	return NewMultiRegistry(k8sGatherer, prometheus.DefaultGatherer)
 }
 
 func ProvideRegistererForTest() prometheus.Registerer {
@@ -125,7 +125,7 @@ type multiRegistry struct {
 	gatherers []prometheus.Gatherer
 }
 
-func newMultiRegistry(gatherers ...prometheus.Gatherer) *multiRegistry {
+func NewMultiRegistry(gatherers ...prometheus.Gatherer) *multiRegistry {
 	return &multiRegistry{
 		gatherers: gatherers,
 	}
diff --git a/pkg/infra/metrics/service_test.go b/pkg/infra/metrics/service_test.go
index af489a23965..6d32dde6480 100644
--- a/pkg/infra/metrics/service_test.go
+++ b/pkg/infra/metrics/service_test.go
@@ -51,7 +51,7 @@ func TestGathererPrefixWrapper_Gather(t *testing.T) {
 func TestMultiRegistry_Gather(t *testing.T) {
 	one := &mockGatherer{}
 	two := &mockGatherer{}
-	g := newMultiRegistry(one, two)
+	g := NewMultiRegistry(one, two)
 
 	t.Run("should merge and sort metrics", func(t *testing.T) {
 		one.GatherFunc = func() ([]*dto.MetricFamily, error) {