diff --git a/erigon-lib/kv/kv_interface.go b/erigon-lib/kv/kv_interface.go
index 0a5327c6458..f8832cbbb02 100644
--- a/erigon-lib/kv/kv_interface.go
+++ b/erigon-lib/kv/kv_interface.go
@@ -229,6 +229,11 @@ type Closer interface {
 	Close()
 }
 
+type OnFreezeFunc func(frozenFileNames []string)
+type SnapshotNotifier interface {
+	OnFreeze(f OnFreezeFunc)
+}
+
 // RoDB - Read-only version of KV.
 type RoDB interface {
 	Closer
@@ -516,6 +521,7 @@ type TemporalPutDel interface {
 
 type TemporalRoDB interface {
 	RoDB
+	SnapshotNotifier
 	ViewTemporal(ctx context.Context, f func(tx TemporalTx) error) error
 	BeginTemporalRo(ctx context.Context) (TemporalTx, error)
 }
diff --git a/erigon-lib/kv/remotedb/kv_remote.go b/erigon-lib/kv/remotedb/kv_remote.go
index 6e64863ebb4..43a3d34cccf 100644
--- a/erigon-lib/kv/remotedb/kv_remote.go
+++ b/erigon-lib/kv/remotedb/kv_remote.go
@@ -228,6 +228,7 @@ func (db *DB) Update(ctx context.Context, f func(tx kv.RwTx) error) (err error)
 func (db *DB) UpdateNosync(ctx context.Context, f func(tx kv.RwTx) error) (err error) {
 	return errors.New("remote db provider doesn't support .UpdateNosync method")
 }
+func (db *DB) OnFreeze(f kv.OnFreezeFunc) { panic("not implemented") }
 
 func (tx *tx) ViewID() uint64  { return tx.viewID }
 func (tx *tx) CollectMetrics() {}
diff --git a/erigon-lib/kv/temporal/kv_temporal.go b/erigon-lib/kv/temporal/kv_temporal.go
index ebe1367dd0b..399af03919e 100644
--- a/erigon-lib/kv/temporal/kv_temporal.go
+++ b/erigon-lib/kv/temporal/kv_temporal.go
@@ -152,6 +152,13 @@ func (db *DB) UpdateNosync(ctx context.Context, f func(tx kv.RwTx) error) error
 	return tx.Commit()
 }
 
+func (db *DB) Close() {
+	db.RwDB.Close()
+	db.agg.Close()
+}
+
+func (db *DB) OnFreeze(f kv.OnFreezeFunc) { db.agg.OnFreeze(f) }
+
 type Tx struct {
 	*mdbx.MdbxTx
 	db               *DB
diff --git a/erigon-lib/state/aggregator.go b/erigon-lib/state/aggregator.go
index fac019852f5..ac1bccda2d1 100644
--- a/erigon-lib/state/aggregator.go
+++ b/erigon-lib/state/aggregator.go
@@ -82,7 +82,7 @@ type Aggregator struct {
 
 	wg sync.WaitGroup // goroutines spawned by Aggregator, to ensure all of them are finish at agg.Close
 
-	onFreeze OnFreezeFunc
+	onFreeze kv.OnFreezeFunc
 
 	ps *background.ProgressSet
 
@@ -95,8 +95,6 @@ type Aggregator struct {
 	produce bool
 }
 
-type OnFreezeFunc func(frozenFileNames []string)
-
 const AggregatorSqueezeCommitmentValues = true
 const MaxNonFuriousDirtySpacePerTx = 64 * datasize.MB
 
@@ -377,8 +375,8 @@ func (a *Aggregator) registerII(idx kv.InvertedIdxPos, salt *uint32, dirs datadi
 	return nil
 }
 
-func (a *Aggregator) StepSize() uint64        { return a.aggregationStep }
-func (a *Aggregator) OnFreeze(f OnFreezeFunc) { a.onFreeze = f }
+func (a *Aggregator) StepSize() uint64           { return a.aggregationStep }
+func (a *Aggregator) OnFreeze(f kv.OnFreezeFunc) { a.onFreeze = f }
 func (a *Aggregator) DisableFsync() {
 	for _, d := range a.d {
 		d.DisableFsync()
diff --git a/eth/backend.go b/eth/backend.go
index 55677cc86f7..e1b1edcb6d2 100644
--- a/eth/backend.go
+++ b/eth/backend.go
@@ -204,7 +204,6 @@ type Ethereum struct {
 	forkValidator           *engine_helpers.ForkValidator
 	downloader              *downloader.Downloader
 
-	agg            *libstate.Aggregator
 	blockSnapshots *freezeblocks.RoSnapshots
 	blockReader    services.FullBlockReader
 	blockWriter    *blockio.BlockWriter
@@ -343,7 +342,7 @@ func New(ctx context.Context, stack *node.Node, config *ethconfig.Config, logger
 		return nil, err
 	}
 
-	backend.agg, backend.blockSnapshots, backend.blockReader, backend.blockWriter = agg, allSnapshots, blockReader, blockWriter
+	backend.blockSnapshots, backend.blockReader, backend.blockWriter = allSnapshots, blockReader, blockWriter
 
 	backend.chainDB, err = temporal.New(rawChainDB, agg)
 	if err != nil {
@@ -1420,7 +1419,7 @@ func (s *Ethereum) setUpSnapDownloader(ctx context.Context, downloaderCfg *downl
 		s.downloaderClient = direct.NewDownloaderClient(bittorrentServer)
 	}
 
-	s.agg.OnFreeze(func(frozenFileNames []string) {
+	s.chainDB.OnFreeze(func(frozenFileNames []string) {
 		events := s.notifications.Events
 		events.OnNewSnapshot()
 		if s.downloaderClient != nil {
@@ -1643,9 +1642,6 @@ func (s *Ethereum) Stop() error {
 	if s.txPoolDB != nil {
 		s.txPoolDB.Close()
 	}
-	if s.agg != nil {
-		s.agg.Close()
-	}
 	s.chainDB.Close()
 
 	if s.silkwormRPCDaemonService != nil {