diff --git a/problems/amd/eval.py b/problems/amd/eval.py
index ac3a632..8f56312 100644
--- a/problems/amd/eval.py
+++ b/problems/amd/eval.py
@@ -8,6 +8,7 @@
 import math
 from pathlib import Path
 from typing import Any, Optional
+from copy import deepcopy
 
 import torch.cuda
 
@@ -135,7 +136,7 @@ def _clone_data(data):
     elif isinstance(data, torch.Tensor):
         return data.clone()
     else:
-        return data
+        return deepcopy(data)
 
 
 def wrap_check_implementation(data, submission_output):