diff --git a/cmd/frostfs-adm/internal/modules/morph/deploy.go b/cmd/frostfs-adm/internal/modules/morph/deploy.go
index 97e216f3..a9098891 100644
--- a/cmd/frostfs-adm/internal/modules/morph/deploy.go
+++ b/cmd/frostfs-adm/internal/modules/morph/deploy.go
@@ -57,7 +57,6 @@ func init() {
 	ff.String(customZoneFlag, "frostfs", "Custom zone for NNS")
 }
 
-// nolint: funlen
 func deployContractCmd(cmd *cobra.Command, args []string) error {
 	v := viper.GetViper()
 	c, err := newInitializeContext(cmd, v)
@@ -101,80 +100,88 @@ func deployContractCmd(cmd *cobra.Command, args []string) error {
 			cs.Manifest.Name)
 	}
 
-	w := io.NewBufBinWriter()
-	if err := emitDeploymentArguments(w.BinWriter, args); err != nil {
+	writer := io.NewBufBinWriter()
+	if err := emitDeploymentArguments(writer.BinWriter, args); err != nil {
 		return err
 	}
-	emit.Bytes(w.BinWriter, cs.RawManifest)
-	emit.Bytes(w.BinWriter, cs.RawNEF)
-	emit.Int(w.BinWriter, 3)
-	emit.Opcodes(w.BinWriter, opcode.PACK)
-	emit.AppCallNoArgs(w.BinWriter, callHash, method, callflag.All)
-	emit.Opcodes(w.BinWriter, opcode.DROP) // contract state on stack
+	emit.Bytes(writer.BinWriter, cs.RawManifest)
+	emit.Bytes(writer.BinWriter, cs.RawNEF)
+	emit.Int(writer.BinWriter, 3)
+	emit.Opcodes(writer.BinWriter, opcode.PACK)
+	emit.AppCallNoArgs(writer.BinWriter, callHash, method, callflag.All)
+	emit.Opcodes(writer.BinWriter, opcode.DROP) // contract state on stack
 	if !isUpdate {
-		bw := io.NewBufBinWriter()
-		emit.Instruction(bw.BinWriter, opcode.INITSSLOT, []byte{1})
-		emit.AppCall(bw.BinWriter, nnsCs.Hash, "getPrice", callflag.All)
-		emit.Opcodes(bw.BinWriter, opcode.STSFLD0)
-		emit.AppCall(bw.BinWriter, nnsCs.Hash, "setPrice", callflag.All, 1)
-
-		start := bw.Len()
-		needRecord := false
-
-		ok, err := c.nnsRootRegistered(nnsCs.Hash, zone)
+		err := registerNNS(nnsCs, c, zone, domain, cs, writer)
 		if err != nil {
 			return err
-		} else if !ok {
-			needRecord = true
-
-			emit.AppCall(bw.BinWriter, nnsCs.Hash, "register", callflag.All,
-				zone, c.CommitteeAcc.Contract.ScriptHash(),
-				"ops@nspcc.ru", int64(3600), int64(600), int64(defaultExpirationTime), int64(3600))
-			emit.Opcodes(bw.BinWriter, opcode.ASSERT)
-
-			emit.AppCall(bw.BinWriter, nnsCs.Hash, "register", callflag.All,
-				domain, c.CommitteeAcc.Contract.ScriptHash(),
-				"ops@nspcc.ru", int64(3600), int64(600), int64(defaultExpirationTime), int64(3600))
-			emit.Opcodes(bw.BinWriter, opcode.ASSERT)
-		} else {
-			s, ok, err := c.nnsRegisterDomainScript(nnsCs.Hash, cs.Hash, domain)
-			if err != nil {
-				return err
-			}
-			needRecord = !ok
-			if len(s) != 0 {
-				bw.WriteBytes(s)
-			}
-		}
-		if needRecord {
-			emit.AppCall(bw.BinWriter, nnsCs.Hash, "deleteRecords", callflag.All, domain, int64(nns.TXT))
-			emit.AppCall(bw.BinWriter, nnsCs.Hash, "addRecord", callflag.All,
-				domain, int64(nns.TXT), address.Uint160ToString(cs.Hash))
-		}
-
-		if bw.Err != nil {
-			panic(fmt.Errorf("BUG: can't create deployment script: %w", w.Err))
-		} else if bw.Len() != start {
-			w.WriteBytes(bw.Bytes())
-			emit.Opcodes(w.BinWriter, opcode.LDSFLD0, opcode.PUSH1, opcode.PACK)
-			emit.AppCallNoArgs(w.BinWriter, nnsCs.Hash, "setPrice", callflag.All)
-
-			if needRecord {
-				c.Command.Printf("NNS: Set %s -> %s\n", domain, cs.Hash.StringLE())
-			}
 		}
 	}
 
-	if w.Err != nil {
-		panic(fmt.Errorf("BUG: can't create deployment script: %w", w.Err))
+	if writer.Err != nil {
+		panic(fmt.Errorf("BUG: can't create deployment script: %w", writer.Err))
 	}
 
-	if err := c.sendCommitteeTx(w.Bytes(), false); err != nil {
+	if err := c.sendCommitteeTx(writer.Bytes(), false); err != nil {
 		return err
 	}
 	return c.awaitTx()
 }
 
+func registerNNS(nnsCs *state.Contract, c *initializeContext, zone string, domain string, cs *contractState, writer *io.BufBinWriter) error {
+	bw := io.NewBufBinWriter()
+	emit.Instruction(bw.BinWriter, opcode.INITSSLOT, []byte{1})
+	emit.AppCall(bw.BinWriter, nnsCs.Hash, "getPrice", callflag.All)
+	emit.Opcodes(bw.BinWriter, opcode.STSFLD0)
+	emit.AppCall(bw.BinWriter, nnsCs.Hash, "setPrice", callflag.All, 1)
+
+	start := bw.Len()
+	needRecord := false
+
+	ok, err := c.nnsRootRegistered(nnsCs.Hash, zone)
+	if err != nil {
+		return err
+	} else if !ok {
+		needRecord = true
+
+		emit.AppCall(bw.BinWriter, nnsCs.Hash, "register", callflag.All,
+			zone, c.CommitteeAcc.Contract.ScriptHash(),
+			"ops@nspcc.ru", int64(3600), int64(600), int64(defaultExpirationTime), int64(3600))
+		emit.Opcodes(bw.BinWriter, opcode.ASSERT)
+
+		emit.AppCall(bw.BinWriter, nnsCs.Hash, "register", callflag.All,
+			domain, c.CommitteeAcc.Contract.ScriptHash(),
+			"ops@nspcc.ru", int64(3600), int64(600), int64(defaultExpirationTime), int64(3600))
+		emit.Opcodes(bw.BinWriter, opcode.ASSERT)
+	} else {
+		s, ok, err := c.nnsRegisterDomainScript(nnsCs.Hash, cs.Hash, domain)
+		if err != nil {
+			return err
+		}
+		needRecord = !ok
+		if len(s) != 0 {
+			bw.WriteBytes(s)
+		}
+	}
+	if needRecord {
+		emit.AppCall(bw.BinWriter, nnsCs.Hash, "deleteRecords", callflag.All, domain, int64(nns.TXT))
+		emit.AppCall(bw.BinWriter, nnsCs.Hash, "addRecord", callflag.All,
+			domain, int64(nns.TXT), address.Uint160ToString(cs.Hash))
+	}
+
+	if bw.Err != nil {
+		panic(fmt.Errorf("BUG: can't create deployment script: %w", writer.Err))
+	} else if bw.Len() != start {
+		writer.WriteBytes(bw.Bytes())
+		emit.Opcodes(writer.BinWriter, opcode.LDSFLD0, opcode.PUSH1, opcode.PACK)
+		emit.AppCallNoArgs(writer.BinWriter, nnsCs.Hash, "setPrice", callflag.All)
+
+		if needRecord {
+			c.Command.Printf("NNS: Set %s -> %s\n", domain, cs.Hash.StringLE())
+		}
+	}
+	return nil
+}
+
 func emitDeploymentArguments(w *io.BinWriter, args []string) error {
 	_, ps, err := cmdargs.ParseParams(args, true)
 	if err != nil {