diff --git a/api/core/app/apps/advanced_chat/generate_task_pipeline.py b/api/core/app/apps/advanced_chat/generate_task_pipeline.py
index 5e924723b6..2e9b643d8b 100644
--- a/api/core/app/apps/advanced_chat/generate_task_pipeline.py
+++ b/api/core/app/apps/advanced_chat/generate_task_pipeline.py
@@ -352,8 +352,8 @@ class AdvancedChatAppGenerateTaskPipeline(BasedGenerateTaskPipeline, WorkflowCyc
                     workflow_node_execution=workflow_node_execution,
                 )
 
-                if response:
-                    yield response
+                if response_finish:
+                    yield response_finish
 
             elif isinstance(event, QueueParallelBranchRunStartedEvent):
                 if not workflow_run: