diff --git a/script/RFscan/GunScan.py b/script/RFscan/GunScan.py
index 92a41bb..3f9ada5 100644
--- a/script/RFscan/GunScan.py
+++ b/script/RFscan/GunScan.py
@@ -36,7 +36,7 @@ camtool.start("simulation")
 
 #x  =  Channel("SINEG01-DSCR190:X-SIM",  type = 'd', alias='SCR-X')
 #dx =  Channel("SINEG01-DSCR190:DX-SIM", type = 'd', alias='SCR-DX')
-x  = CamtoolValue("gr_x_fit_mean")
+x  = CamtoolValue("gr_x_mean")
 dx = CamtoolValue("gr_x_fit_standard_deviation")
 
 try: