diff --git a/dev/test_4_mux_2024.py b/dev/test_4_mux_2024.py
index 4afdcea35532f03ed817fadaae3ddc34283a1c77..0cf0b1aaf84fb2a999d9833aab526315e2c8553d 100644
--- a/dev/test_4_mux_2024.py
+++ b/dev/test_4_mux_2024.py
@@ -15,7 +15,7 @@ within_ohmpi = False
 # Stand alone mux
 if stand_alone_mux:
     mux_id = 'mux_02'
-    MUX_CONFIG = MUX_CONFIG['mux']['boards'][mux_id]
+    MUX_CONFIG = MUX_CONFIG['boards'][mux_id]
     # MUX_CONFIG['ctl'] = ctl_module.Ctl()
     mux = Mux(**MUX_CONFIG)
     mux.switch_one(elec=1, role='M', state='on')