diff --git a/configs/config_mb_2023_4_mux_2024.py b/configs/config_mb_2023_4_mux_2024.py
index 0880f7bd3d3c57725313755a2bf6a56808ac4165..b60061fa92addc1c6868dccf0d242109b9a6bd11 100644
--- a/configs/config_mb_2023_4_mux_2024.py
+++ b/configs/config_mb_2023_4_mux_2024.py
@@ -42,7 +42,7 @@ HARDWARE_CONFIG = {
                           'mcp_0': '0x22',  # NOTE: Check pos of jumper on MUX board (refer to doc)
                           'mcp_1': '0x23',  # NOTE: Check pos of jumper on MUX board (refer to doc)
                           'roles': {'A': 'X', 'B': 'Y', 'M': 'XX', 'N': 'YY'},
-                          'cabling': {(i, j): ('mux_02', i) for j in ['A', 'B', 'M', 'N'] for i in range(1, 9)},
+                          'cabling': {(i, j): ('mux_02', i) for j in ['A', 'B', 'M', 'N'] for i in range(1, 9)},  # TODO: avoid redundency of mux_id
                           'voltage_max': 12.},
                      'mux_05':
                          {'model': 'mux_2024_rev_0_0',  # 'ohmpi_i2c_mux64_v1.01',
diff --git a/dev/test_4_mux_2024.py b/dev/test_4_mux_2024.py
index 943074f4980d9d2b506fe48c7804f9cf9f6fed19..2d4b36ef455b13028910bf87dd06cb1a48838dbf 100644
--- a/dev/test_4_mux_2024.py
+++ b/dev/test_4_mux_2024.py
@@ -16,7 +16,7 @@ within_ohmpi = False
 if stand_alone_mux:
     mux_id = 'mux_02'
     print(MUX_CONFIG)
-    MUX_CONFIG.update(HARDWARE_CONFIG['mux']['boards'][mux_id])
+    MUX_CONFIG.update({mux_id: HARDWARE_CONFIG['mux']['boards'][mux_id]})
     MUX_CONFIG['ctl'] = ctl_module.Ctl()
     mux = Mux(**MUX_CONFIG)
     mux.switch_one(elec=1, role='M', state='on')