diff --git a/cmd/frostfs-adm/internal/modules/morph/dump_hashes.go b/cmd/frostfs-adm/internal/modules/morph/dump_hashes.go
index 32f85bce..69db5c7b 100644
--- a/cmd/frostfs-adm/internal/modules/morph/dump_hashes.go
+++ b/cmd/frostfs-adm/internal/modules/morph/dump_hashes.go
@@ -8,6 +8,7 @@ import (
 	"text/tabwriter"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-contract/nns"
+	morphClient "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/client"
 	"github.com/nspcc-dev/neo-go/pkg/io"
 	"github.com/nspcc-dev/neo-go/pkg/rpcclient/invoker"
 	"github.com/nspcc-dev/neo-go/pkg/rpcclient/unwrap"
@@ -123,7 +124,7 @@ func dumpCustomZoneHashes(cmd *cobra.Command, nnsHash util.Uint160, zone string,
 			return
 		}
 
-		if !bytes.HasSuffix(bs, []byte(zone)) {
+		if !bytes.HasSuffix(bs, []byte(zone)) || bytes.HasPrefix(bs, []byte(morphClient.NNSGroupKeyName)) {
 			// Related https://github.com/nspcc-dev/neofs-contract/issues/316.
 			return
 		}