diff --git a/script/KeithleyVoltageScan.py b/script/KeithleyVoltageScan.py
index 020bdf41..2941d31c 100644
--- a/script/KeithleyVoltageScan.py
+++ b/script/KeithleyVoltageScan.py
@@ -5,7 +5,7 @@ Keithley voltage scan
 
 POSITIONERS = (Keithley1Voltage)
 SENSORS = (Counts, SampleCurrent, RefCurrent, MachineCurrent, EnergyDistribution, AngleDistribution, Scienta.dataMatrix)
-POSITIONS = (0,10)
+POSITIONS = (10,-10)
 STEPS = 1.0
 LATENCY = 1.0