diff --git a/config/devices.properties b/config/devices.properties
index 6ec131e8..39bd4598 100644
--- a/config/devices.properties
+++ b/config/devices.properties
@@ -115,5 +115,5 @@ $dummy=ch.psi.pshell.epics.Motor|XXX|||false
 img=ch.psi.pshell.imaging.CameraSource|Scienta|||true
 cam1=ch.psi.pshell.imaging.MjpegSource|http://x03da-cam-1/axis-cgi/mjpg/video.cgi||-200|
 cam2=ch.psi.pshell.imaging.MjpegSource|http://x03da-cam-2/axis-cgi/mjpg/video.cgi||-1000|
-ps1img=ch.psi.pshell.imaging.CameraSource|ps1||-500|
+ps1img=ch.psi.pshell.imaging.CameraSource|ps1||-500|true
 opps1img=ch.psi.pshell.imaging.CameraSource|op-ps1||-500|