diff --git a/site_ansto/instrument/bilby/config/motors/motor_configuration.tcl b/site_ansto/instrument/bilby/config/motors/motor_configuration.tcl
index 60e4de8c..497fab44 100644
--- a/site_ansto/instrument/bilby/config/motors/motor_configuration.tcl
+++ b/site_ansto/instrument/bilby/config/motors/motor_configuration.tcl
@@ -16,6 +16,7 @@ for {set n 1} {$n <= 8} {incr n} {
 
 # Make a position-motor for the attenuator
 make_coll_motor_1 att_pos att_pos att count
+sicslist setatt att_pos klass instrument
 
 # make gap/offset motors for the slits
 make_gap_motors ss1hg gap ss1ho offset ss1r ss1l mm first/horizontal