diff --git a/ckanext/harvest/tests/harvesters/test_ckanharvester.py b/ckanext/harvest/tests/harvesters/test_ckanharvester.py
index e018f81d..b90f2ad8 100644
--- a/ckanext/harvest/tests/harvesters/test_ckanharvester.py
+++ b/ckanext/harvest/tests/harvesters/test_ckanharvester.py
@@ -49,7 +49,7 @@ def test_gather_normal(self):
         obj_ids = harvester.gather_stage(job)
 
         assert job.gather_errors == []
-        assert type(obj_ids) == list
+        assert isinstance(obj_ids, list)
         assert len(obj_ids) == len(mock_ckan.DATASETS)
         harvest_object = harvest_model.HarvestObject.get(obj_ids[0])
         assert harvest_object.guid == mock_ckan.DATASETS[0]['id']