diff --git a/config/devices.properties b/config/devices.properties
index d4d86771..67ca6679 100644
--- a/config/devices.properties
+++ b/config/devices.properties
@@ -59,6 +59,7 @@ MonoHSize=ch.psi.pshell.epics.ChannelDouble|X03DA-AU-SH:size|||true
 MonoApertureMode=ch.psi.pshell.epics.ChannelDouble|X03DA-PHS:AU|||true
 $MonoBladeUp=ch.psi.pshell.epics.ChannelDouble|X03DA-AU:UP|||true
 $MonoBladeDown=ch.psi.pshell.epics.ChannelDouble|X03DA-AU:DW|||true
+MonoGrating=ch.psi.pshell.epics.ChannelString|X03DA-PGM:grating|Read||true
 FocusYTrans=ch.psi.pshell.epics.ChannelDouble|X03DA-OP-FMU:oy|||true
 FocusZTrans=ch.psi.pshell.epics.ChannelDouble|X03DA-OP-FMU:oz|||true
 FocusXRot=ch.psi.pshell.epics.ChannelDouble|X03DA-OP-FMU:oRx|||true