diff --git a/config/devices.properties b/config/devices.properties
index e00c673..90ae4d6 100644
--- a/config/devices.properties
+++ b/config/devices.properties
@@ -17,6 +17,7 @@ collimatorTable=ch.psi.pshell.device.MotorGroupBase collimatorX collimatorY
 collimator=ch.psi.pshell.device.MotorGroupDiscretePositioner collimatorTable
 aperture=ch.psi.pshell.device.MotorGroupDiscretePositioner apertureTable
 scintillator=ch.psi.pshell.device.MotorGroupDiscretePositioner scintillatorY
+test=ch.psi.pshell.device.MotorGroupDiscretePositioner apertureX apertureY
 slit1H=ch.psi.pshell.epics.Slit X10SA-OP-SH1:TRX2 X10SA-OP-SH1:TRX1
 slit1V=ch.psi.pshell.epics.Slit X10SA-OP-SV1:TRY1 X10SA-OP-SV1:TRY2
 slit2H=ch.psi.pshell.epics.Slit X10SA-OP-SH2:TRX2 X10SA-OP-SH2:TRX1