diff --git a/pkg/local_object_storage/blobovnicza/iterate.go b/pkg/local_object_storage/blobovnicza/iterate.go
index 18da2132..e62c5bb9 100644
--- a/pkg/local_object_storage/blobovnicza/iterate.go
+++ b/pkg/local_object_storage/blobovnicza/iterate.go
@@ -26,7 +26,9 @@ func (b *Blobovnicza) iterateBucketKeys(f func(uint64, uint64, []byte) (bool, er
 }
 
 func (b *Blobovnicza) iterateBounds(f func(uint64, uint64) (bool, error)) error {
-	for upper := firstBucketBound; upper <= max(b.objSizeLimit, firstBucketBound); upper *= 2 {
+	objLimitBound := upperPowerOfTwo(b.objSizeLimit)
+
+	for upper := firstBucketBound; upper <= max(objLimitBound, firstBucketBound); upper *= 2 {
 		var lower uint64
 
 		if upper == firstBucketBound {
diff --git a/pkg/local_object_storage/blobovnicza/sizes.go b/pkg/local_object_storage/blobovnicza/sizes.go
index 1bcee4bd..c304df56 100644
--- a/pkg/local_object_storage/blobovnicza/sizes.go
+++ b/pkg/local_object_storage/blobovnicza/sizes.go
@@ -31,12 +31,14 @@ func bucketKeyFromBounds(upperBound uint64) []byte {
 }
 
 func bucketForSize(sz uint64) []byte {
-	var upperBound uint64
+	return bucketKeyFromBounds(upperPowerOfTwo(sz))
+}
 
-	for upperBound = firstBucketBound; upperBound < sz; upperBound *= 2 {
+func upperPowerOfTwo(v uint64) (upperBound uint64) {
+	for upperBound = firstBucketBound; upperBound < v; upperBound *= 2 {
 	}
 
-	return bucketKeyFromBounds(upperBound)
+	return
 }
 
 func (b *Blobovnicza) incSize(sz uint64) {