diff --git a/internal/node/advancer/machines/machines.go b/internal/node/advancer/machines/machines.go
index a60bd740c..00d35fb8d 100644
--- a/internal/node/advancer/machines/machines.go
+++ b/internal/node/advancer/machines/machines.go
@@ -60,19 +60,19 @@ func Load(ctx context.Context, config config.NodeConfig, repo Repository) (*Mach
 
 		address, err := cartesimachine.StartServer(serverVerbosity, 0, os.Stdout, os.Stderr)
 		if err != nil {
-			return nil, close(machines)
+			return nil, closeMachines(machines)
 		}
 
 		config := &emulator.MachineRuntimeConfig{}
 		cartesiMachine, err := cartesimachine.Load(ctx, snapshotPath, address, config)
 		if err != nil {
-			err = errors.Join(err, cartesimachine.StopServer(address), close(machines))
+			err = errors.Join(err, cartesimachine.StopServer(address), closeMachines(machines))
 			return nil, err
 		}
 
 		rollupsMachine, err := rollupsmachine.New(ctx, cartesiMachine, machineInc, machineMax)
 		if err != nil {
-			err = errors.Join(err, cartesiMachine.Close(ctx), close(machines))
+			err = errors.Join(err, cartesiMachine.Close(ctx), closeMachines(machines))
 			return nil, err
 		}
 
@@ -82,7 +82,7 @@ func Load(ctx context.Context, config config.NodeConfig, repo Repository) (*Mach
 			machineInspectTimeout,
 			maxConcurrentInspects)
 		if err != nil {
-			err = errors.Join(err, rollupsMachine.Close(ctx), close(machines))
+			err = errors.Join(err, rollupsMachine.Close(ctx), closeMachines(machines))
 			return nil, err
 		}
 
@@ -141,7 +141,7 @@ func (m *Machines) Close() error {
 	m.mutex.Lock()
 	defer m.mutex.Unlock()
 
-	err := close(m.machines)
+	err := closeMachines(m.machines)
 	if err != nil {
 		slog.Error(fmt.Sprintf("failed to close some machines: %v", err))
 	}
@@ -156,7 +156,7 @@ func (m *Machines) get(app model.Address) *nodemachine.NodeMachine {
 	return m.machines[app]
 }
 
-func close(machines map[model.Address]*nodemachine.NodeMachine) (err error) {
+func closeMachines(machines map[model.Address]*nodemachine.NodeMachine) (err error) {
 	for _, machine := range machines {
 		err = errors.Join(err, machine.Close())
 	}
diff --git a/pkg/rollupsmachine/machine_test.go b/pkg/rollupsmachine/machine_test.go
index d25b7edc6..c430b51f8 100644
--- a/pkg/rollupsmachine/machine_test.go
+++ b/pkg/rollupsmachine/machine_test.go
@@ -13,7 +13,7 @@ import (
 
 	"github.com/cartesi/rollups-node/pkg/emulator"
 	"github.com/cartesi/rollups-node/pkg/rollupsmachine/cartesimachine"
-	"github.com/cartesi/rollups-node/test/snapshot"
+	"github.com/cartesi/rollups-node/test/tooling/snapshot"
 
 	"github.com/stretchr/testify/require"
 	"github.com/stretchr/testify/suite"
diff --git a/test/snapshot/snapshot.go b/test/tooling/snapshot/snapshot.go
similarity index 100%
rename from test/snapshot/snapshot.go
rename to test/tooling/snapshot/snapshot.go