diff --git a/test_mux_2024.py b/test_mux_2024.py
index 3d76ef3fefeea44983860d2d355dbbd20ca4a4fc..9b6c813158a0b767ebddd87718ed5af0889c2aff 100644
--- a/test_mux_2024.py
+++ b/test_mux_2024.py
@@ -5,7 +5,7 @@ from OhmPi.hardware_components.mux_2024_rev_0_0 import Mux, MUX_CONFIG
 from OhmPi.hardware_components import raspberry_pi as controller_module
 
 MUX_CONFIG['controller'] = controller_module.Controller()
-mux = Mux(MUX_CONFIG)
+mux = Mux(**MUX_CONFIG)
 mux.switch_one(elec=1, role='M', state='on')
 time.sleep(2)
 mux.switch_one(elec=1, role='M', state='off')