diff --git a/userbenchmark/dynamo/dynamobench/_dynamo/utils.py b/userbenchmark/dynamo/dynamobench/_dynamo/utils.py
index 933cabc5a2..7432861920 100644
--- a/userbenchmark/dynamo/dynamobench/_dynamo/utils.py
+++ b/userbenchmark/dynamo/dynamobench/_dynamo/utils.py
@@ -2013,6 +2013,8 @@ def nnmodule_has_hooks(
 
 def to_numpy_helper(value):
     """Convert tensor and tnp.ndarray to numpy.ndarray."""
+    if is_fake(value):
+        return value
     if isinstance(value, tnp.ndarray):
         return to_numpy_helper(value.tensor)
     elif isinstance(value, torch.Tensor):