diff --git a/dstat_interface/interface/adc_pot.py b/dstat_interface/interface/adc_pot.py
index 0a0561680c5c4008a5d854ba8727da28c3994183..b223cd2e3a1ad02955611e4d25f40dad49220fb8 100755
--- a/dstat_interface/interface/adc_pot.py
+++ b/dstat_interface/interface/adc_pot.py
@@ -106,7 +106,7 @@ class adc_pot(object):
         
         self._params['adc_rate_hz'] = sample_rate
         
-        pga_model = self.ui['srate_index'].get_model()
+        pga_model = self.ui['pga_index'].get_model()
         self._params['adc_pga'] = pga_model[self._params['pga_index']][2]
         
         gain_model = self.ui['gain_index'].get_model()