diff --git a/script/Marco/power-supply.py b/script/Marco/power-supply.py
index 017fc88..4faee7a 100644
--- a/script/Marco/power-supply.py
+++ b/script/Marco/power-supply.py
@@ -58,8 +58,8 @@ SetVA.close()
 ActualVA.close()
 ActualIA.close()
 
-readable =    scan.getReadable(0)
-positions =   scan.getPositions(0)
+readable =    detector2
+positions =   detector1
 
 threshold = (min(readable) + max(readable))/2
 min_peak_distance = 5.0