diff --git a/dev/test_3_mux_2024.py b/dev/test_3_mux_2024.py
index b2122d37004391a6b54d261038906558569e3840..b35528ae9ee7451e81b722d97f286dd2d4338873 100644
--- a/dev/test_3_mux_2024.py
+++ b/dev/test_3_mux_2024.py
@@ -47,7 +47,7 @@ if within_ohmpi:
     from ohmpi.ohmpi import OhmPi
     print('Starting test of mux within OhmPi.')
     k = OhmPi()
-    A, B, M, N = (25, 28, 27, 26)
+    A, B, M, N = (9, 12, 10, 11)
     k.reset_mux()
     k._hw.switch_mux([A, B, M, N], state='on')
     k._hw.vab_square_wave(12.,12., cycles=2)