diff --git a/rdagent/scenarios/data_science/test_eval.py b/rdagent/scenarios/data_science/test_eval.py
index c13d74b8..6cf22c66 100644
--- a/rdagent/scenarios/data_science/test_eval.py
+++ b/rdagent/scenarios/data_science/test_eval.py
@@ -116,7 +116,7 @@ class MLETestEval(TestEvalBase):
         )
         workspace.inject_files(**{"test/mle_submission_format_test.py": mle_check_code})
         submission_check_out, submission_ret_code = workspace.execute_ret_code(
-            env=mde, entry="python test/mle_submission_format_test.py"
+            env=self.env, entry="python test/mle_submission_format_test.py"
         )
 
         workspace.inject_files(**{"test/mle_submission_format_test.output": submission_check_out})