diff --git a/apps/auto_convert3d_new.py b/apps/auto_convert3d_new.py
index a83192a..04ff220 100644
--- a/apps/auto_convert3d_new.py
+++ b/apps/auto_convert3d_new.py
@@ -39,7 +39,6 @@ def down_obj_fromoss(pid,order_id):
     prefix = f'objs/print/{pid}/'
     if ossPath != "":
         prefix = os.path.join("objs","print",pid,ossPath,order_id)
-        prefix = prefix + "/"
     filelist = oss2.ObjectIteratorV2(oss_client, prefix=prefix)
     print(f'prefix:{prefix}')
     print(f'ossPath:{ossPath}')