diff --git a/test_mux_2024.py b/test_mux_2024.py
index ad68ca2c2fe7a99d287877da834f67a54ea71b3d..32c217fb0986629a7fd1485655a5cb58c7ec0e6d 100644
--- a/test_mux_2024.py
+++ b/test_mux_2024.py
@@ -41,7 +41,7 @@ if within_ohmpi:
     from OhmPi.ohmpi import OhmPi
     print('Starting test of mux within OhmPi.')
     k = OhmPi()
-    k.switch_mux((1,'A'), state='on')
+    k.switch_mux_on([1,4,2,3])
     time.sleep(1.)
     k.reset_mux()