diff --git a/field.py b/field.py
index 632c454be7fee0e4226f36f753300e393108f1ac..47cd0955c8cf6ccbb12f1f00495730a5feca7d39 100644
--- a/field.py
+++ b/field.py
@@ -586,7 +586,7 @@ class Field:
 
         def _hashable_content(self):
             super_class_contents = list(super(Field.Access, self)._hashable_content())
-            t = tuple(super_class_contents + [hash(self._field), self._index] + self._offsets)
+            t = tuple(super_class_contents + [id(self._field), self._index] + self._offsets)
             return t
 
         def _latex(self, _):