diff --git a/config/devices.properties b/config/devices.properties
index 1d27557..3bcc9ff 100644
--- a/config/devices.properties
+++ b/config/devices.properties
@@ -12,3 +12,4 @@ detectorY=ch.psi.pshell.epics.Motor X10SA-ES-D:TRY1 false
 apertureTable=ch.psi.pshell.dev.MotorGroupBase apertureX apertureY
 beamstopTable=ch.psi.pshell.dev.MotorGroupBase beamstopX beamstopY beamstopZ
 collimatorTable=ch.psi.pshell.dev.MotorGroupBase collimatorX collimatorY
+collimator=ch.psi.pshell.dev.MotorGroupDiscretePositioner collimatorTable