diff --git a/apps/application/flow/step_node/document_extract_node/impl/base_document_extract_node.py b/apps/application/flow/step_node/document_extract_node/impl/base_document_extract_node.py
index 7bd910c31f3..b285e90b07d 100644
--- a/apps/application/flow/step_node/document_extract_node/impl/base_document_extract_node.py
+++ b/apps/application/flow/step_node/document_extract_node/impl/base_document_extract_node.py
@@ -35,7 +35,7 @@ def execute(self, document, chat_id=None, **kwargs):
             knowledge_id = self.workflow_params.get('knowledge_id')
         elif [WorkflowMode.APPLICATION, WorkflowMode.APPLICATION_LOOP].__contains__(
                 self.workflow_manage.flow.workflow_mode):
-            application_id = self.workflow_manage.work_flow_post_handler.chat_info.application.id
+            application_id = self.workflow_manage.work_flow_post_handler.chat_info.application_id
         elif [WorkflowMode.TOOL, WorkflowMode.TOOL_LOOP].__contains__(self.workflow_manage.flow.workflow_mode):
             tool_id = self.workflow_params.get('tool_id')