diff --git a/metrics/billing.go b/metrics/billing.go
index 2d75961c..7bd36393 100644
--- a/metrics/billing.go
+++ b/metrics/billing.go
@@ -197,8 +197,8 @@ type billingMetrics struct {
 func newBillingMetrics() *billingMetrics {
 	return &billingMetrics{
 		registry:         prometheus.NewRegistry(),
-		userRequestsDesc: NewDesc(AppMetricsDesc[billingSubsystem][userRequestsMetric]),
-		userTrafficDesc:  NewDesc(AppMetricsDesc[billingSubsystem][userTrafficMetric]),
+		userRequestsDesc: newDesc(appMetricsDesc[billingSubsystem][userRequestsMetric]),
+		userTrafficDesc:  newDesc(appMetricsDesc[billingSubsystem][userTrafficMetric]),
 		apiStat:          UsersAPIStats{},
 	}
 }
diff --git a/metrics/desc.go b/metrics/desc.go
index 84f2f53e..c3cc9f6a 100644
--- a/metrics/desc.go
+++ b/metrics/desc.go
@@ -6,7 +6,7 @@ import (
 	"github.com/prometheus/client_golang/prometheus"
 )
 
-var AppMetricsDesc = map[string]map[string]Description{
+var appMetricsDesc = map[string]map[string]Description{
 	poolSubsystem: {
 		overallErrorsMetric: Description{
 			Namespace: namespace,
@@ -161,7 +161,7 @@ func (d *Description) ConstLabelsMap() map[string]string {
 // DescribeAll returns descriptions for metrics.
 func DescribeAll() []Description {
 	var list []Description
-	for _, m := range AppMetricsDesc {
+	for _, m := range appMetricsDesc {
 		for _, description := range m {
 			list = append(list, description)
 		}
@@ -170,7 +170,7 @@ func DescribeAll() []Description {
 	return list
 }
 
-func NewOpts(description Description) prometheus.Opts {
+func newOpts(description Description) prometheus.Opts {
 	return prometheus.Opts{
 		Namespace:   description.Namespace,
 		Subsystem:   description.Subsystem,
@@ -180,7 +180,7 @@ func NewOpts(description Description) prometheus.Opts {
 	}
 }
 
-func NewDesc(description Description) *prometheus.Desc {
+func newDesc(description Description) *prometheus.Desc {
 	return prometheus.NewDesc(
 		description.BuildFQName(),
 		description.Help,
@@ -188,15 +188,15 @@ func NewDesc(description Description) *prometheus.Desc {
 		description.ConstLabelsMap())
 }
 
-func NewGauge(description Description) prometheus.Gauge {
+func newGauge(description Description) prometheus.Gauge {
 	return prometheus.NewGauge(
-		prometheus.GaugeOpts(NewOpts(description)),
+		prometheus.GaugeOpts(newOpts(description)),
 	)
 }
 
-func NewGaugeVec(description Description) *prometheus.GaugeVec {
+func newGaugeVec(description Description) *prometheus.GaugeVec {
 	return prometheus.NewGaugeVec(
-		prometheus.GaugeOpts(NewOpts(description)),
+		prometheus.GaugeOpts(newOpts(description)),
 		description.VariableLabels,
 	)
 }
diff --git a/metrics/pool.go b/metrics/pool.go
index 83929912..b71f4793 100644
--- a/metrics/pool.go
+++ b/metrics/pool.go
@@ -47,11 +47,11 @@ type poolMetricsCollector struct {
 func newPoolMetricsCollector(scraper StatisticScraper) *poolMetricsCollector {
 	return &poolMetricsCollector{
 		poolStatScraper:     scraper,
-		overallErrors:       NewGauge(AppMetricsDesc[poolSubsystem][overallErrorsMetric]),
-		overallNodeErrors:   NewGaugeVec(AppMetricsDesc[poolSubsystem][overallNodeErrorsMetric]),
-		overallNodeRequests: NewGaugeVec(AppMetricsDesc[poolSubsystem][overallNodeRequestsMetric]),
-		currentErrors:       NewGaugeVec(AppMetricsDesc[poolSubsystem][currentErrorMetric]),
-		requestDuration:     NewGaugeVec(AppMetricsDesc[poolSubsystem][avgRequestDurationMetric]),
+		overallErrors:       newGauge(appMetricsDesc[poolSubsystem][overallErrorsMetric]),
+		overallNodeErrors:   newGaugeVec(appMetricsDesc[poolSubsystem][overallNodeErrorsMetric]),
+		overallNodeRequests: newGaugeVec(appMetricsDesc[poolSubsystem][overallNodeRequestsMetric]),
+		currentErrors:       newGaugeVec(appMetricsDesc[poolSubsystem][currentErrorMetric]),
+		requestDuration:     newGaugeVec(appMetricsDesc[poolSubsystem][avgRequestDurationMetric]),
 	}
 }
 
diff --git a/metrics/state.go b/metrics/state.go
index 8aa8624e..fe71aaaf 100644
--- a/metrics/state.go
+++ b/metrics/state.go
@@ -28,8 +28,8 @@ type StateMetrics struct {
 
 func newStateMetrics() *StateMetrics {
 	return &StateMetrics{
-		healthCheck: NewGauge(AppMetricsDesc[stateSubsystem][healthMetric]),
-		versionInfo: NewGaugeVec(AppMetricsDesc[stateSubsystem][versionInfoMetric]),
+		healthCheck: newGauge(appMetricsDesc[stateSubsystem][healthMetric]),
+		versionInfo: newGaugeVec(appMetricsDesc[stateSubsystem][versionInfoMetric]),
 	}
 }
 
diff --git a/metrics/stats.go b/metrics/stats.go
index 462e7d54..2666029b 100644
--- a/metrics/stats.go
+++ b/metrics/stats.go
@@ -52,7 +52,7 @@ const (
 )
 
 func newAPIStatMetrics() *APIStatMetrics {
-	histogramDesc := AppMetricsDesc[statisticSubsystem][requestsSecondsMetric]
+	histogramDesc := appMetricsDesc[statisticSubsystem][requestsSecondsMetric]
 
 	return &APIStatMetrics{
 		stats: newHTTPStats(),
@@ -154,11 +154,11 @@ func (a *APIStatMetrics) Collect(ch chan<- prometheus.Metric) {
 
 func newHTTPStats() *httpStats {
 	return &httpStats{
-		currentS3RequestsDesc: NewDesc(AppMetricsDesc[statisticSubsystem][requestsCurrentMetric]),
-		totalS3RequestsDesc:   NewDesc(AppMetricsDesc[statisticSubsystem][requestsTotalMetric]),
-		totalS3ErrorsDesc:     NewDesc(AppMetricsDesc[statisticSubsystem][errorsTotalMetric]),
-		txBytesTotalDesc:      NewDesc(AppMetricsDesc[statisticSubsystem][txBytesTotalMetric]),
-		rxBytesTotalDesc:      NewDesc(AppMetricsDesc[statisticSubsystem][rxBytesTotalMetric]),
+		currentS3RequestsDesc: newDesc(appMetricsDesc[statisticSubsystem][requestsCurrentMetric]),
+		totalS3RequestsDesc:   newDesc(appMetricsDesc[statisticSubsystem][requestsTotalMetric]),
+		totalS3ErrorsDesc:     newDesc(appMetricsDesc[statisticSubsystem][errorsTotalMetric]),
+		txBytesTotalDesc:      newDesc(appMetricsDesc[statisticSubsystem][txBytesTotalMetric]),
+		rxBytesTotalDesc:      newDesc(appMetricsDesc[statisticSubsystem][rxBytesTotalMetric]),
 	}
 }