diff --git a/selfdrive/manager/test/test_manager.py b/selfdrive/manager/test/test_manager.py
index 0fa186baff..e97c4d14d7 100755
--- a/selfdrive/manager/test/test_manager.py
+++ b/selfdrive/manager/test/test_manager.py
@@ -53,7 +53,6 @@ class TestManager(unittest.TestCase):
     """
     HARDWARE.set_power_save(False)
     manager.manager_init()
-    manager.manager_prepare()
 
     CP = car.CarParams.new_message()
     procs = ensure_running(managed_processes.values(), True, Params(), CP, not_run=BLACKLIST_PROCS)