diff --git a/pkg/node/onetomany.go b/pkg/node/onetomany.go
index 10f86539..c63b97fc 100644
--- a/pkg/node/onetomany.go
+++ b/pkg/node/onetomany.go
@@ -8,11 +8,6 @@ import (
 	"github.com/siyul-park/uniflow/pkg/process"
 )
 
-// OneToManyNodeConfig holds the configuration for OneToManyNode.
-type OneToManyNodeConfig struct {
-	Action func(*process.Process, *packet.Packet) ([]*packet.Packet, *packet.Packet)
-}
-
 // OneToManyNode represents a node that processes *packet.Packet with one input and many outputs.
 type OneToManyNode struct {
 	action   func(*process.Process, *packet.Packet) ([]*packet.Packet, *packet.Packet)
@@ -25,8 +20,7 @@ type OneToManyNode struct {
 var _ Node = (*OneToManyNode)(nil)
 
 // NewOneToManyNode creates a new OneToManyNode with the given configuration.
-func NewOneToManyNode(config OneToManyNodeConfig) *OneToManyNode {
-	action := config.Action
+func NewOneToManyNode(action func(*process.Process, *packet.Packet) ([]*packet.Packet, *packet.Packet)) *OneToManyNode {
 	if action == nil {
 		action = func(_ *process.Process, _ *packet.Packet) ([]*packet.Packet, *packet.Packet) {
 			return nil, nil
diff --git a/pkg/node/onetomany_test.go b/pkg/node/onetomany_test.go
index 572fe353..d030e9a2 100644
--- a/pkg/node/onetomany_test.go
+++ b/pkg/node/onetomany_test.go
@@ -14,10 +14,8 @@ import (
 )
 
 func TestNewOneToManyNode(t *testing.T) {
-	n := NewOneToManyNode(OneToManyNodeConfig{
-		Action: func(_ *process.Process, inPck *packet.Packet) ([]*packet.Packet, *packet.Packet) {
-			return []*packet.Packet{inPck}, nil
-		},
+	n := NewOneToManyNode(func(_ *process.Process, inPck *packet.Packet) ([]*packet.Packet, *packet.Packet) {
+		return []*packet.Packet{inPck}, nil
 	})
 	assert.NotNil(t, n)
 
@@ -25,10 +23,8 @@ func TestNewOneToManyNode(t *testing.T) {
 }
 
 func TestOneToManyNode_Port(t *testing.T) {
-	n := NewOneToManyNode(OneToManyNodeConfig{
-		Action: func(_ *process.Process, inPck *packet.Packet) ([]*packet.Packet, *packet.Packet) {
-			return []*packet.Packet{inPck}, nil
-		},
+	n := NewOneToManyNode(func(_ *process.Process, inPck *packet.Packet) ([]*packet.Packet, *packet.Packet) {
+		return []*packet.Packet{inPck}, nil
 	})
 	defer func() { _ = n.Close() }()
 
@@ -47,10 +43,8 @@ func TestOneToManyNode_Port(t *testing.T) {
 
 func TestOneToManyNode_Send(t *testing.T) {
 	t.Run("return out", func(t *testing.T) {
-		n := NewOneToManyNode(OneToManyNodeConfig{
-			Action: func(_ *process.Process, inPck *packet.Packet) ([]*packet.Packet, *packet.Packet) {
-				return []*packet.Packet{inPck}, nil
-			},
+		n := NewOneToManyNode(func(_ *process.Process, inPck *packet.Packet) ([]*packet.Packet, *packet.Packet) {
+			return []*packet.Packet{inPck}, nil
 		})
 		defer func() { _ = n.Close() }()
 
@@ -92,10 +86,8 @@ func TestOneToManyNode_Send(t *testing.T) {
 	})
 
 	t.Run("return err", func(t *testing.T) {
-		n := NewOneToManyNode(OneToManyNodeConfig{
-			Action: func(_ *process.Process, inPck *packet.Packet) ([]*packet.Packet, *packet.Packet) {
-				return nil, packet.New(primitive.NewString(faker.Word()))
-			},
+		n := NewOneToManyNode(func(_ *process.Process, inPck *packet.Packet) ([]*packet.Packet, *packet.Packet) {
+			return nil, packet.New(primitive.NewString(faker.Word()))
 		})
 		defer func() { _ = n.Close() }()
 
@@ -131,10 +123,8 @@ func TestOneToManyNode_Send(t *testing.T) {
 }
 
 func BenchmarkOneToManyNode_Send(b *testing.B) {
-	n := NewOneToManyNode(OneToManyNodeConfig{
-		Action: func(_ *process.Process, inPck *packet.Packet) ([]*packet.Packet, *packet.Packet) {
-			return []*packet.Packet{inPck}, nil
-		},
+	n := NewOneToManyNode(func(_ *process.Process, inPck *packet.Packet) ([]*packet.Packet, *packet.Packet) {
+		return []*packet.Packet{inPck}, nil
 	})
 	defer func() { _ = n.Close() }()
 
diff --git a/pkg/plugin/controllx/switch.go b/pkg/plugin/controllx/switch.go
index 0a8fc647..1643ac44 100644
--- a/pkg/plugin/controllx/switch.go
+++ b/pkg/plugin/controllx/switch.go
@@ -49,9 +49,7 @@ var _ scheme.Spec = (*SwitchSpec)(nil)
 // NewSwitchNode creates a new SwitchNode with the given configuration.
 func NewSwitchNode(config SwitchNodeConfig) *SwitchNode {
 	n := &SwitchNode{}
-	n.OneToManyNode = node.NewOneToManyNode(node.OneToManyNodeConfig{
-		Action: n.action,
-	})
+	n.OneToManyNode = node.NewOneToManyNode(n.action)
 
 	return n
 }
diff --git a/pkg/plugin/networkx/router.go b/pkg/plugin/networkx/router.go
index 309f75f8..0d205db5 100644
--- a/pkg/plugin/networkx/router.go
+++ b/pkg/plugin/networkx/router.go
@@ -78,9 +78,7 @@ func NewRouterNode(config RouterNodeConfig) *RouterNode {
 			methods: map[string]string{},
 		},
 	}
-	n.OneToManyNode = node.NewOneToManyNode(node.OneToManyNodeConfig{
-		Action: n.action,
-	})
+	n.OneToManyNode = node.NewOneToManyNode(n.action)
 
 	return n
 }