diff --git a/script/users/X-Treme users/launchOTF.py b/script/users/X-Treme users/launchOTF.py
index 957985bf..dac01fd6 100644
--- a/script/users/X-Treme users/launchOTF.py	
+++ b/script/users/X-Treme users/launchOTF.py	
@@ -14,7 +14,7 @@ time.sleep(3.0)
 print "done setting energy."
 
 
-caput('X03DA-OP-VG7:WT_SET',2)   #open ES vacuum valve
+caput('X03DA-OP-VG7:WT_SET',1)   #open ES vacuum valve
 caput('X03DA-OP-ST1:WT_SET_OPEN',1) # open ES Shutter
 
 time.sleep(5.0)
@@ -39,5 +39,5 @@ print "saved data to: ",fname
 time.sleep(1.0)
 
 caput('X03DA-OP-ST1:WT_SET_CLOSE',1)  # close ES Shutter
-caput('X03DA-OP-VG7:WT_SET',1)   #close ES vacuum valve
+caput('X03DA-OP-VG7:WT_SET',2)   #close ES vacuum valve