diff --git a/flurs/tests/test_evaluator.py b/flurs/tests/test_evaluator.py
index <HASH>..<HASH> 100644
--- a/flurs/tests/test_evaluator.py
+++ b/flurs/tests/test_evaluator.py
@@ -12,7 +12,7 @@ class EvaluatorTestCase(TestCase):
     def setUp(self):
         recommender = Popular()
         recommender.init_recommender()
-        self.evaluator = Evaluator(recommender, repeat=False)
+        self.evaluator = Evaluator(recommender=recommender, repeat=False)
 
         self.samples = [Event(User(0), Item(0), 1),
                         Event(User(0), Item(1), 1),
Explicitly pass `recommender` to Evaluator