diff --git a/ohmpi/ohmpi.py b/ohmpi/ohmpi.py
index 54e08566e06a8fc126b0703f00b18cdf0a32901c..1b227d4b006f268556553ecc84d0ec838ba2c506 100644
--- a/ohmpi/ohmpi.py
+++ b/ohmpi/ohmpi.py
@@ -576,7 +576,6 @@ class OhmPi(object):
 
             dd['cmd_id'] = str(cmd_id)
             self.data_logger.info(dd)
-            self.switch_mux_on()
             self._hw.switch_mux(electrodes=quad[0:2], roles=['A', 'B'], state='on')
             time.sleep(0.2)
             self._hw.switch_mux(electrodes=quad[0:2], roles=['A', 'B'], state='off')