diff --git a/pkg/local_object_storage/shard/control_test.go b/pkg/local_object_storage/shard/control_test.go
index 44fee1636..6b9eaa550 100644
--- a/pkg/local_object_storage/shard/control_test.go
+++ b/pkg/local_object_storage/shard/control_test.go
@@ -126,7 +126,7 @@ func TestRefillMetabaseCorrupted(t *testing.T) {
 		}),
 	}
 
-	mm := NewMetricStore()
+	mm := newMetricStore()
 
 	sh := New(
 		WithID(NewIDFromBytes([]byte{})),
@@ -190,7 +190,7 @@ func TestRefillMetabase(t *testing.T) {
 		}),
 	}
 
-	mm := NewMetricStore()
+	mm := newMetricStore()
 
 	sh := New(
 		WithID(NewIDFromBytes([]byte{})),
diff --git a/pkg/local_object_storage/shard/metrics_test.go b/pkg/local_object_storage/shard/metrics_test.go
index 56622326a..cec5a12ad 100644
--- a/pkg/local_object_storage/shard/metrics_test.go
+++ b/pkg/local_object_storage/shard/metrics_test.go
@@ -35,7 +35,7 @@ type metricsStore struct {
 	refillStatus  string
 }
 
-func NewMetricStore() *metricsStore {
+func newMetricStore() *metricsStore {
 	return &metricsStore{
 		objCounters: map[string]uint64{
 			"phy":   0,
@@ -404,7 +404,7 @@ func shardWithMetrics(t *testing.T, path string) (*Shard, *metricsStore) {
 		}),
 	}
 
-	mm := NewMetricStore()
+	mm := newMetricStore()
 
 	sh := New(
 		WithID(NewIDFromBytes([]byte{})),
diff --git a/pkg/local_object_storage/shard/reload_test.go b/pkg/local_object_storage/shard/reload_test.go
index 7dacbfa6c..7dd7189bb 100644
--- a/pkg/local_object_storage/shard/reload_test.go
+++ b/pkg/local_object_storage/shard/reload_test.go
@@ -51,7 +51,7 @@ func TestShardReload(t *testing.T) {
 		WithMetaBaseOptions(metaOpts...),
 		WithPiloramaOptions(
 			pilorama.WithPath(filepath.Join(p, "pilorama"))),
-		WithMetricsWriter(NewMetricStore()),
+		WithMetricsWriter(newMetricStore()),
 	}
 
 	sh := New(opts...)