diff --git a/modelscope/preprocessors/templates/loader.py b/modelscope/preprocessors/templates/loader.py
index 1a75dc35..c7fb370e 100644
--- a/modelscope/preprocessors/templates/loader.py
+++ b/modelscope/preprocessors/templates/loader.py
@@ -375,7 +375,7 @@ class TemplateLoader:
                 model_id, **kwargs)
 
         if template is None:
-            TemplateLoader._format_return(None, None, split)
+            return TemplateLoader._format_return(None, None, split)
             
         # template
         template_lines = ''