diff --git a/test/test_celery_worker.py b/test/test_celery_worker.py
index 7e882d7347335c1d2f7938e3fdd8ecddb6be4ef6..64b57851949242dcc66f4e1c4c5a77ce4723c8b2 100644
--- a/test/test_celery_worker.py
+++ b/test/test_celery_worker.py
@@ -23,7 +23,7 @@ class MockedRedis(object):
             etree.fromstring(value)
         elif key == 'snmp-interfaces':
             obj = json.loads(value)
-            assert isinstance(obj, dict)
+            assert isinstance(obj, list)
         MockedRedis.db.setdefault(name, {})[key] = value