diff --git a/thunder/common.py b/thunder/common.py
index 54dbe13c34..ec0ed1d262 100644
--- a/thunder/common.py
+++ b/thunder/common.py
@@ -233,15 +233,7 @@ def __init__(
         self.additional_return_names = None
         self.num_constant_args = 0
 
-        self._processed_function: Callable
-
-        assert disable_preprocessing, "please use thunder.jit if you need preprocessing"
-        self._processed_function = fn
-
-    # Disallows overwriting processed_function
-    @property
-    def processed_function(self):
-        return self._processed_function
+        assert disable_preprocessing, "please use thunder.compile if you need preprocessing"
 
 
 # Common UX functions
@@ -665,7 +657,7 @@ def _create_callable(
     post_optimization_transforms: list[Callable] = [],
     _using_grad_transform: bool = False,
 ) -> Callable:
-    @wraps(cd.processed_function)
+    @wraps(cd.fn)
     def _fn(*args, **kwargs) -> tuple[Any, list[TraceCtx]]:
         cs.last_trace_host_start = time.time_ns()
         cs.calls += 1
@@ -728,11 +720,7 @@ def _fn(*args, **kwargs) -> tuple[Any, list[TraceCtx]]:
         cs.last_trace_cache_stop = time.time_ns()
 
         # Applies the autocast transform if PyTorch's autocast behavior is enabled
-        processed_function = (
-            cd.processed_function
-            if not is_autocast_enabled
-            else autocast(cd.processed_function, dtype=autocast_thunder_dtype)
-        )
+        processed_function = cd.fn if not is_autocast_enabled else autocast(cd.fn, dtype=autocast_thunder_dtype)
 
         # Resets use of compile flags
         cs.last_compile_reasons = defaultdict(list)
@@ -839,7 +827,6 @@ def _fn(*args, **kwargs) -> tuple[Any, list[TraceCtx]]:
             return result
 
     # NOTE is_module is False
-    _fn._pfn = cd.processed_function
     _fn._lc_cd = cd
     _fn._lc_cs = cs
     _fn._lc_transforms = transforms