diff --git a/reclass/datatypes/exports.py b/reclass/datatypes/exports.py
index 375ea0b..52c5ef1 100644
--- a/reclass/datatypes/exports.py
+++ b/reclass/datatypes/exports.py
@@ -71,7 +71,7 @@
         paths = {}
         path = DictPath(self._settings.delimiter)
         for i in mainpath.key_parts():
-            path.new_subpath(i)
+            path = path.new_subpath(i)
             if path in self._unrendered:
                 paths[path] = True
         for i in self._unrendered:
diff --git a/reclass/datatypes/tests/test_entity.py b/reclass/datatypes/tests/test_entity.py
index 1af9caa..f398d51 100644
--- a/reclass/datatypes/tests/test_entity.py
+++ b/reclass/datatypes/tests/test_entity.py
@@ -209,6 +209,22 @@
         self.assertDictEqual(node1_parameters.as_dict(), res_params)
         self.assertDictEqual(inventory, res_inv)
 
+    def test_exports_with_ancestor_references(self):
+        inventory = {'node1': {'alpha' : {'beta': {'a': 1, 'b': 2}}}, 'node2': {'alpha' : {'beta': {'a': 3, 'b': 4}}}}
+        node3_exports = Exports({'alpha': '${alpha}'}, SETTINGS, '')
+        node3_parameters = Parameters({'name': 'node3', 'alpha': {'beta' : {'a': 5, 'b': 6}}, 'exp': '$[ exports:alpha:beta ]'}, SETTINGS, '')
+        node3_entity = Entity(SETTINGS, classes=None, applications=None, parameters=node3_parameters, exports=node3_exports)
+        res_params = {'exp': {'node1': {'a': 1, 'b': 2}, 'node2': {'a': 3, 'b': 4}, 'node3': {'a': 5, 'b': 6}}, 'name': 'node3', 'alpha': {'beta': {'a': 5, 'b': 6}}}
+        res_inv = {'node1': {'alpha' : {'beta': {'a': 1, 'b': 2}}}, 'node2': {'alpha' : {'beta': {'a': 3, 'b': 4}}}, 'node3': {'alpha' : {'beta': {'a': 5, 'b': 6}}}}
+        node3_entity.initialise_interpolation()
+        queries = node3_entity.parameters.get_inv_queries()
+        for p, q in queries:
+            node3_entity.interpolate_single_export(q)
+        inventory['node3'] = node3_entity.exports.as_dict()
+        node3_entity.interpolate(inventory)
+        self.assertDictEqual(node3_parameters.as_dict(), res_params)
+        self.assertDictEqual(inventory, res_inv)
+
     def test_exports_with_nested_references(self):
         inventory = {'node1': {'alpha': {'a': 1, 'b': 2}}, 'node2': {'alpha': {'a': 3, 'b': 4}}}
         node3_exports = Exports({'alpha': '${alpha}'}, SETTINGS, '')