diff --git a/script/Marco/power-supply.py b/script/Marco/power-supply.py
index 62a1a45..7ef2939 100644
--- a/script/Marco/power-supply.py
+++ b/script/Marco/power-supply.py
@@ -21,7 +21,7 @@ caput('PO2DV-NCS-VHQ1:Set-VA', '0')
 #wait for voltage to be 0
 for setpoint1 in frange(0.0, 50.0, 1.0, True):
     detector2 = ActualVA.get()
-    if detector2 <= 0.0:
+    if detector2 <= 1.0:
         break
     sleep(0.5)