diff --git a/script/RFscan/GunScan.py b/script/RFscan/GunScan.py
index 8799838..9ca823b 100644
--- a/script/RFscan/GunScan.py
+++ b/script/RFscan/GunScan.py
@@ -1,4 +1,5 @@
 import  ch.psi.pshell.epics.ControlledVariable as ControlledVariable
+import  ch.psi.pshell.epics.Camtool as Camtool
 
 if get_exec_pars().source == CommandSource.ui:
     start   = 0.0