diff --git a/config/devices.properties b/config/devices.properties
index 69ed5e53..1d7a042a 100644
--- a/config/devices.properties
+++ b/config/devices.properties
@@ -82,6 +82,7 @@ MonoCff=ch.psi.pshell.epics.ChannelDouble|X03DA-PGM:rbkcff|Read||true
 MonoBeta=ch.psi.pshell.epics.ChannelDouble|X03DA-PGM:rbkbeta|Read||true
 MonoTheta=ch.psi.pshell.epics.ChannelDouble|X03DA-PGM:rbktheta|Read||true
 ExitSlit=ch.psi.pshell.epics.ChannelDouble|X03DA-OP-EXS:AP|Read||true
+ExitSlitY=ch.psi.pshell.epics.Motor|X03DA-OP-EXS:Y|||
 FocusWaterTemp=ch.psi.pshell.epics.ChannelDouble|X03DA-PC-HUBER:TEMP-I-RBV|Read||true
 AuxVoltage=ch.psi.pshell.epics.ChannelDouble|X03DA-OP:CADC4|Read||true
 SampleCurrentGain=ch.psi.pshell.epics.ChannelString|X03DA-OP-CURAMP1:GainSel|Read||true