diff --git a/api/core/workflow/nodes/llm/llm_node.py b/api/core/workflow/nodes/llm/llm_node.py
index 0f1c2113fd..0a8839c6f9 100644
--- a/api/core/workflow/nodes/llm/llm_node.py
+++ b/api/core/workflow/nodes/llm/llm_node.py
@@ -52,6 +52,7 @@ class ModelInvokeCompleted(BaseModel):
     """
     text: str
     usage: LLMUsage
+    finish_reason: Optional[str] = None
 
 
 class LLMNode(BaseNode):
diff --git a/api/core/workflow/nodes/question_classifier/question_classifier_node.py b/api/core/workflow/nodes/question_classifier/question_classifier_node.py
index dfb1dab00a..ecab8db9b6 100644
--- a/api/core/workflow/nodes/question_classifier/question_classifier_node.py
+++ b/api/core/workflow/nodes/question_classifier/question_classifier_node.py
@@ -74,12 +74,12 @@ class QuestionClassifierNode(LLMNode):
 
         result_text = ''
         usage = LLMUsage.empty_usage()
-        finished_reason = None
+        finish_reason = None
         for event in generator:
             if isinstance(event, ModelInvokeCompleted):
                 result_text = event.text
                 usage = event.usage
-                finished_reason = event.finished_reason
+                finish_reason = event.finish_reason
                 break
 
         category_name = node_data.classes[0].name