diff --git a/script/diode_scan.py b/script/diode_scan.py
index 701da10..402c6c1 100644
--- a/script/diode_scan.py
+++ b/script/diode_scan.py
@@ -9,7 +9,7 @@ Demonstrate the use of Line Scan: one or multiple positioners move together line
 #set_preference(Preference.PLOT_TYPES, {wf1:1})
 
 #Execute the scan: 200 steps, a1 from 0 to 40
-a= lscan(ao1, (diode,ai2,wf1), 0, 40, 200, 0.01)                    
+a= lscan(ao1, (diode,current), 0, 40, 200, 0.01)                    
 
 #Also samples an image:
 #a= lscan(ao1, (ai1,ai2,wf1), 0, 40, 200, 0.01)