diff --git a/scripts/pylib/twister/twisterlib/testplan.py b/scripts/pylib/twister/twisterlib/testplan.py
index 18f35a1eeb4..0131e42b8fd 100755
--- a/scripts/pylib/twister/twisterlib/testplan.py
+++ b/scripts/pylib/twister/twisterlib/testplan.py
@@ -947,7 +947,7 @@ class TestPlan:
 
                 if ts.harness:
                     sim = plat.simulator_by_name(self.options.sim_name)
-                    if ts.harness == 'robot' and sim and sim.name != 'renode':
+                    if ts.harness == 'robot' and not (sim and sim.name == 'renode'):
                         instance.add_filter("No robot support for the selected platform", Filters.SKIP)
 
                 if ts.depends_on: