diff --git a/pcs_test/tier0/daemon/async_tasks/helpers.py b/pcs_test/tier0/daemon/async_tasks/helpers.py
index e3fca2266..afe602bbf 100644
--- a/pcs_test/tier0/daemon/async_tasks/helpers.py
+++ b/pcs_test/tier0/daemon/async_tasks/helpers.py
@@ -82,11 +82,9 @@ def prepare_scheduler(self):
             self.logging_queue,
             # mp.Queue(),
         ]
-        self.mp_pool_mock = (
-            mock.patch("multiprocessing.Pool", spec=mp.Pool)
-            .start()
-            .return_value
-        ) = mock.Mock()
+        self.mp_pool_mock = mock.patch(
+            "multiprocessing.Pool", spec=mp.Pool
+        ).start().return_value = mock.Mock()
         # This might be needed when logger is called by get_logger, but is it?
         self.scheduler = scheduler.Scheduler(
             scheduler.SchedulerConfig(