diff --git a/clients/client-python/tests/integration/test_simple_auth_client.py b/clients/client-python/tests/integration/test_simple_auth_client.py
index a4ed77fe185..5dd8a553b9b 100644
--- a/clients/client-python/tests/integration/test_simple_auth_client.py
+++ b/clients/client-python/tests/integration/test_simple_auth_client.py
@@ -100,6 +100,8 @@ def clean_test_data(self):
             )
         except Exception as e:
             logger.error("Clean test data failed: %s", e)
+        finally:
+            os.environ["GRAVITINO_USER"] = ""
 
     def init_test_env(self):
         self.gravitino_admin_client.create_metalake(