diff --git a/python/pacemaker/_cts/tests/simulstop.py b/python/pacemaker/_cts/tests/simulstop.py
index 929b451060..174c5334bc 100644
--- a/python/pacemaker/_cts/tests/simulstop.py
+++ b/python/pacemaker/_cts/tests/simulstop.py
@@ -1,42 +1,42 @@
 """ Stop all running nodes simultaneously """
 
 __all__ = ["SimulStop"]
 __copyright__ = "Copyright 2000-2023 the Pacemaker project contributors"
 __license__ = "GNU General Public License version 2 or later (GPLv2+) WITHOUT ANY WARRANTY"
 
 from pacemaker._cts.tests.ctstest import CTSTest
 from pacemaker._cts.tests.simulstartlite import SimulStartLite
 from pacemaker._cts.tests.simulstoplite import SimulStopLite
 
 
 class SimulStop(CTSTest):
     """ A concrete test that stops all running nodes simultaneously """
 
     def __init__(self, cm):
         """ Create a new SimulStop instance
 
             Arguments:
 
             cm -- A ClusterManager instance
         """
 
         CTSTest.__init__(self, cm)
 
         self.name = "SimulStop"
-        self.stopall = SimulStopLite(cm)
 
         self._startall = SimulStartLite(cm)
+        self._stopall = SimulStopLite(cm)
 
     def __call__(self, dummy):
         """ Perform this test """
 
         self.incr("calls")
 
         ret = self._startall(None)
         if not ret:
             return self.failure("Setup failed")
 
-        if not self.stopall(None):
+        if not self._stopall(None):
             return self.failure("Stopall failed")
 
         return self.success()