diff --git a/api/core/workflow/nodes/trigger_plugin/trigger_plugin_node.py b/api/core/workflow/nodes/trigger_plugin/trigger_plugin_node.py
index f130a699f0..8322f90423 100644
--- a/api/core/workflow/nodes/trigger_plugin/trigger_plugin_node.py
+++ b/api/core/workflow/nodes/trigger_plugin/trigger_plugin_node.py
@@ -11,7 +11,7 @@ from .entities import PluginTriggerData
 
 
 class TriggerPluginNode(Node):
-    _node_type = NodeType.TRIGGER_PLUGIN
+    node_type = NodeType.TRIGGER_PLUGIN
 
     _node_data: PluginTriggerData
 
diff --git a/api/core/workflow/nodes/trigger_schedule/trigger_schedule_node.py b/api/core/workflow/nodes/trigger_schedule/trigger_schedule_node.py
index 72169fdc54..3d8502b5ff 100644
--- a/api/core/workflow/nodes/trigger_schedule/trigger_schedule_node.py
+++ b/api/core/workflow/nodes/trigger_schedule/trigger_schedule_node.py
@@ -11,7 +11,7 @@ from core.workflow.nodes.trigger_schedule.entities import TriggerScheduleNodeDat
 
 
 class TriggerScheduleNode(Node):
-    _node_type = NodeType.TRIGGER_SCHEDULE
+    node_type = NodeType.TRIGGER_SCHEDULE
 
     _node_data: TriggerScheduleNodeData
 
diff --git a/api/core/workflow/nodes/trigger_webhook/node.py b/api/core/workflow/nodes/trigger_webhook/node.py
index 36838a7441..35fd2cce70 100644
--- a/api/core/workflow/nodes/trigger_webhook/node.py
+++ b/api/core/workflow/nodes/trigger_webhook/node.py
@@ -11,7 +11,7 @@ from .entities import ContentType, WebhookData
 
 
 class TriggerWebhookNode(Node):
-    _node_type = NodeType.TRIGGER_WEBHOOK
+    node_type = NodeType.TRIGGER_WEBHOOK
 
     _node_data: WebhookData