diff --git a/map-agent/files/etc/hotplug.d/ethernet/map-dynamic-backhaul b/map-agent/files/etc/hotplug.d/ethernet/map-dynamic-backhaul
index 37e899eeb..ab196c314 100755
--- a/map-agent/files/etc/hotplug.d/ethernet/map-dynamic-backhaul
+++ b/map-agent/files/etc/hotplug.d/ethernet/map-dynamic-backhaul
@@ -63,7 +63,7 @@ else
 		[ $dhcp -eq 1 ] || exit 0
 	else
 		[ -f $map_bh_file ] || exit 0
-		cur_bh="$(cat $map_bh_file  | jsonfilter -e @.ifname)"
+		cur_bh="$(jsonfilter -e @.ifname < "$map_bh_file" 2>/dev/null)" || exit 0
 		[ "$cur_bh" = "$PORT" ] || exit 0
 	fi
 ########################################################