diff --git a/pkg/transactionparser/transaction_test.go b/pkg/transactionparser/transaction_test.go
index e11f4d8..6552e62 100644
--- a/pkg/transactionparser/transaction_test.go
+++ b/pkg/transactionparser/transaction_test.go
@@ -87,7 +87,7 @@ func TestSpend(t *testing.T) {
 			copy(args.PublicKey[:], signing.Public(signer.PrivateKey()))
 			accAddress := core.ComputePrincipal(wallet.TemplateAddress, &args)
 
-			decodedTx, err := transactionparser.Parse(scale.NewDecoder(bytes.NewReader(rawTx)), rawTx, 1)
+			decodedTx, err := transactionparser.Parse(scale.NewDecoder(bytes.NewReader(rawTx)), rawTx, 16)
 			require.NoError(t, err)
 
 			require.Equal(t, testCase.gasPrice, decodedTx.GetGasPrice())
diff --git a/pkg/transactionparser/v0/parser.go b/pkg/transactionparser/v0/parser.go
index 2405086..2072d50 100644
--- a/pkg/transactionparser/v0/parser.go
+++ b/pkg/transactionparser/v0/parser.go
@@ -10,8 +10,8 @@ import (
 )
 
 const (
-	methodSpawn = iota
-	methodSend
+	methodSpawn = 0
+	methodSend  = 16
 )
 
 // ParseTransaction parses a transaction encoded in version 0.
diff --git a/test/testserver/fake_node.go b/test/testserver/fake_node.go
index 2a2988e..a47b3e1 100644
--- a/test/testserver/fake_node.go
+++ b/test/testserver/fake_node.go
@@ -26,7 +26,7 @@ import (
 )
 
 const (
-	methodSend = 1
+	methodSend = 16
 )
 
 type meshServiceWrapper struct {