diff --git a/tests/test_models.py b/tests/test_models.py
index 0c3295c..ba966b6 100644
--- a/tests/test_models.py
+++ b/tests/test_models.py
@@ -22,4 +22,4 @@ def test_expire_data(self):
             operation.id = 3
             operation.save()
         operation = CSVOperation.objects.get(pk=operation_id)
-        assert operation.data.name is ''
+        assert operation.data.name == ''