diff --git a/main.py b/main.py
index f738764fb..f7aa9abe4 100644
--- a/main.py
+++ b/main.py
@@ -80,6 +80,7 @@ def dev():
 
 if __name__ == '__main__':
     os.environ['HF_HOME'] = '/opt/maxkb-app/model/base'
+    os.environ['TMPDIR'] = '/opt/maxkb-app/tmp'
     parser = argparse.ArgumentParser(
         description="""
            qabot service control tools;