diff --git a/tests/test_algorithm.py b/tests/test_algorithm.py
index 8d286bd1..1e328ee0 100644
--- a/tests/test_algorithm.py
+++ b/tests/test_algorithm.py
@@ -83,7 +83,6 @@ class TestTransformAlgorithm(TestCase):
 
     def test_multi_source_as_input_no_start_end(self):
         algo = TestRegisterTransformAlgorithm(
-            self.sim_params,
             sids=[133]
         )