diff --git a/ADApp/Db/LightField_settings.req b/ADApp/Db/LightField_settings.req
index 0e57c93..65503e1 100644
--- a/ADApp/Db/LightField_settings.req
+++ b/ADApp/Db/LightField_settings.req
@@ -7,6 +7,7 @@ $(P)$(R)LFGrating
 $(P)$(R)LFGratingWavelength
 $(P)$(R)LFEntranceWidth
 $(P)$(R)LFExitPort
+$(P)$(R)LFBackgroundPath
 $(P)$(R)LFBackgroundFile
 $(P)$(R)LFBackgroundEnable
 $(P)$(R)LFIntensifierEnable