diff --git a/script/users/X-Treme users/X-Treme_XPSScan_HOPG.py b/script/users/X-Treme users/X-Treme_XPSScan_HOPG.py
index 91cf5e0a..712946cf 100644
--- a/script/users/X-Treme users/X-Treme_XPSScan_HOPG.py	
+++ b/script/users/X-Treme users/X-Treme_XPSScan_HOPG.py	
@@ -25,6 +25,7 @@ run("XPSSpectrum", {"save_scienta_image":True, "ranges":[rs, ], "ENDSCAN":True,
 
 
 # C 1s 500 eV fine scan
+ExitSlit.write(30)
 rs = RangeSelection(495.0,521.0)
 rs.setVars([0.5, 0.05, 3, 800.0]) #Time, Size, Iteration, photon energy
 run("XPSSpectrum", {"save_scienta_image":True, "ranges":[rs, ], "ENDSCAN":True, "pass_energy":50})