diff --git a/docs/_templates/layout.html b/docs/_templates/layout.html
index dc40625..5724a01 100644
--- a/docs/_templates/layout.html
+++ b/docs/_templates/layout.html
@@ -17,6 +17,7 @@
             {% endfor %}
           {% else %}
             <dd><a href="/graphtage/latest">latest</a></dd>
+            <dd><a href="/graphtage/v0.3.0">0.3.0</a></dd>
             <dd><a href="/graphtage/v0.2.9">0.2.9</a></dd>
             <dd><a href="/graphtage/v0.2.8">0.2.8</a></dd>
             <dd><a href="/graphtage/v0.2.7">0.2.7</a></dd>
diff --git a/graphtage/pydiff.py b/graphtage/pydiff.py
index 0bfa950..ae4f2af 100644
--- a/graphtage/pydiff.py
+++ b/graphtage/pydiff.py
@@ -212,9 +212,9 @@ def __init__(self, key, value):
             stack.append((obj, [], [obj.value]))
         elif isinstance(obj, dict):
             stack.append(({}, [], [DictValue(key=k, value=v) for k, v in reversed(list(obj.items()))]))
-        elif isinstance(python_obj, (list, tuple)):
+        elif isinstance(obj, (list, tuple)):
             stack.append(([], [], list(reversed(obj))))
-        elif python_obj is None:
+        elif obj is None:
             new_node = NullNode()
         else:
             pyobj = PyObj(class_name=StringNode(obj.__class__.__name__, quoted=False), attrs=None)  # type: ignore
diff --git a/graphtage/version.py b/graphtage/version.py
index 7cab2b0..2fbc10a 100644
--- a/graphtage/version.py
+++ b/graphtage/version.py
@@ -59,7 +59,7 @@ def git_branch() -> Optional[str]:
 """
 
 
-__version__: Tuple[Union[int, str], ...] = (0, 2, 9)
+__version__: Tuple[Union[int, str], ...] = (0, 3, 0)
 
 if DEV_BUILD:
     branch_name = git_branch()
diff --git a/test/test_pydiff.py b/test/test_pydiff.py
index 48e6fe9..8addbec 100644
--- a/test/test_pydiff.py
+++ b/test/test_pydiff.py
@@ -23,3 +23,13 @@ def __init__(self, bar, baz):
 
         printer = graphtage.printer.Printer(ansi_color=True)
         print_diff(Foo("bar", "baz"), Foo("bar", "bak"), printer=printer)
+
+    def test_nested_tuple_diff(self):
+        tree = build_tree({"a": (1, 2)})
+        self.assertIsInstance(tree, graphtage.DictNode)
+        children = tree.children()
+        self.assertEqual(1, len(children))
+        kvp = children[0]
+        self.assertIsInstance(kvp, graphtage.KeyValuePairNode)
+        self.assertIsInstance(kvp.key, graphtage.StringNode)
+        self.assertIsInstance(kvp.value, graphtage.ListNode)