diff --git a/series_tiempo_ar_api/apps/metadata/queries/query.py b/series_tiempo_ar_api/apps/metadata/queries/query.py
index 0f2aa2ca..6c11340d 100644
--- a/series_tiempo_ar_api/apps/metadata/queries/query.py
+++ b/series_tiempo_ar_api/apps/metadata/queries/query.py
@@ -84,9 +84,9 @@ def execute(self):
                     'id': getattr(hit, 'id', None),
                     'description': getattr(hit, 'description', None),
                     'title': getattr(hit, 'title', None),
-                    'periodicity': getattr(hit, 'periodicity', None),
-                    'start_date': start_date,
-                    'end_date': end_date,
+                    'frequency': getattr(hit, 'periodicity', None),
+                    'time_index_start': start_date,
+                    'time_index_end': end_date,
                     'units': getattr(hit, 'units', None),
                 },
                 'dataset': {
diff --git a/series_tiempo_ar_api/apps/metadata/tests/query_tests.py b/series_tiempo_ar_api/apps/metadata/tests/query_tests.py
index 454cafe9..51fddd74 100644
--- a/series_tiempo_ar_api/apps/metadata/tests/query_tests.py
+++ b/series_tiempo_ar_api/apps/metadata/tests/query_tests.py
@@ -84,9 +84,9 @@ def test_enhanced_meta(self):
         with mock.patch.object(Search, 'execute', return_value=get_mock_search()):
             result = q.execute()
 
-        self.assertTrue(result['data'][0]['field']['periodicity'], mock_search.periodicity)
-        self.assertTrue(result['data'][0]['field']['start_date'], mock_search.start_date)
-        self.assertTrue(result['data'][0]['field']['end_date'], mock_search.end_date)
+        self.assertTrue(result['data'][0]['field']['frequency'], mock_search.periodicity)
+        self.assertTrue(result['data'][0]['field']['time_index_start'], mock_search.start_date)
+        self.assertTrue(result['data'][0]['field']['time_index_end'], mock_search.end_date)
 
     def test_catalog_id_filter_with_alias(self):
         alias = CatalogAlias.objects.create(alias='alias_id')