diff --git a/script/Marco/power-supply.py b/script/Marco/power-supply.py
index b71ff96..ad032be 100644
--- a/script/Marco/power-supply.py
+++ b/script/Marco/power-supply.py
@@ -6,7 +6,7 @@ sleep(0.5)
 
 #TODO: Set the diplay names of positioners and detectors
 #scan = ManualScan(['time'], ['SetVA', 'ActualVA'] , [0.0], [50.0], [50])
-scan = ManualScan('time', 'SetVA', 'ActualVA' , 0.0, 50.0, 50)
+scan = ManualScan(['time'], ['SetVA'], ['ActualVA'] , [0.0], [50.0], [50])
 scan.start()
 
 #Creating channels: dimension 1