diff --git a/HISTORY.rst b/HISTORY.rst
index 05b76f13..f048f1b7 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -16,6 +16,9 @@ History
   (`#217 <https://github.com/python-attrs/cattrs/issues/217>`_)
 * Fix structuring of ``enum.Enum`` instances in ``typing.Literal`` types.
   (`#231 <https://github.com/python-attrs/cattrs/pull/231>`_)
+* Fix unstructuring all tuples - unannotated, variable-length, homogenous and heterogenous - to `list`.
+  (`#226 <https://github.com/python-attrs/cattrs/issues/226>`_)
+
 
 1.10.0 (2022-01-04)
 -------------------
diff --git a/src/cattr/_compat.py b/src/cattr/_compat.py
index 141fa537..1d64eed9 100644
--- a/src/cattr/_compat.py
+++ b/src/cattr/_compat.py
@@ -277,6 +277,7 @@ def is_sequence(type: Any) -> bool:
                 TypingSequence,
                 TypingMutableSequence,
                 AbcMutableSequence,
+                Tuple,
                 tuple,
             )
             or (
diff --git a/src/cattr/converters.py b/src/cattr/converters.py
index c5450365..92fadbef 100644
--- a/src/cattr/converters.py
+++ b/src/cattr/converters.py
@@ -773,7 +773,7 @@ def gen_unstructure_iterable(self, cl: Any, unstructure_to=None):
 
     def gen_unstructure_hetero_tuple(self, cl: Any, unstructure_to=None):
         unstructure_to = self._unstruct_collection_overrides.get(
-            get_origin(cl) or cl, unstructure_to or tuple
+            get_origin(cl) or cl, unstructure_to or list
         )
         h = make_hetero_tuple_unstructure_fn(cl, self, unstructure_to=unstructure_to)
         self._unstructure_func.register_cls_list([(cl, h)], direct=True)