diff --git a/mphys/core/scenario.py b/mphys/core/scenario.py
index 295faeb..5751b54 100644
--- a/mphys/core/scenario.py
+++ b/mphys/core/scenario.py
@@ -41,6 +41,7 @@ def _mphys_scenario_setup(self):
         """
         pass
 
+    @switch_run_directory
     def setup(self):
         """
         The main setup call for all multiphysics scenarios.