diff --git a/script/KeithleyVoltageScan.py b/script/KeithleyVoltageScan.py
index adc01a95..f25cdb5c 100644
--- a/script/KeithleyVoltageScan.py
+++ b/script/KeithleyVoltageScan.py
@@ -6,7 +6,7 @@ Keithley voltage scan
 POSITIONERS = (Keithley1Voltage)
 SENSORS = (Counts, SampleCurrent, RefCurrent, MachineCurrent, EnergyDistribution, AngleDistribution, Scienta.dataMatrix,ManipulatorTempA)
 #POSITIONS = (10,-10)
-POSITIONS = [10, -10, 10,-10]
+POSITIONS = [(10, -10)]*2
 #STEPS = 1
 LATENCY = 1.0