diff --git a/script/EnergyMultiScan.py b/script/EnergyMultiScan.py
index 4da4d7b..6c0133e 100644
--- a/script/EnergyMultiScan.py
+++ b/script/EnergyMultiScan.py
@@ -54,7 +54,7 @@ def _startPlot(type):
             e = energy.read()
 
             if (abs(e-cur)) > 0.1:            
-                v = abs((keithley_2a.read() / ((keithley_1a if (type==1) else keithley_3a).read() )))
+                v = abs((keithley_3a.read() / ((keithley_1a if (type==1) else keithley_3a).read() )))
                 s.appendData(e,v)    
                 cur = e                                  
             #    time.sleep(0.2)