diff --git a/script/users/X-Treme users/X-Treme_XPSScan_BP.py b/script/users/X-Treme users/X-Treme_XPSScan_BP.py
index f3dbcfdc..f432bb79 100644
--- a/script/users/X-Treme users/X-Treme_XPSScan_BP.py	
+++ b/script/users/X-Treme users/X-Treme_XPSScan_BP.py	
@@ -100,6 +100,6 @@ run("XPSSpectrum", {"save_scienta_image":True, "ranges":[rs, ], "ENDSCAN":False,
 # VB 62 eV fine scan exit slit 100
 rs = RangeSelection(27.0,28.0)
 rs.setVars([0.5, 0.02, 1, 62.0]) #Time, Size, Iteration, photon energy
-run("XPSSpectrum", {"save_scienta_image":False, "ranges":[rs, ], "ENDSCAN":False, "pass_energy":10, "exitslit":50})
+run("XPSSpectrum", {"save_scienta_image":False, "ranges":[rs, ], "ENDSCAN":False, "pass_energy":10, "slit":50})