diff --git a/code/modules/shuttle/shuttle.dm b/code/modules/shuttle/shuttle.dm
index dc3bb999fc6..bbb159fcb0b 100644
--- a/code/modules/shuttle/shuttle.dm
+++ b/code/modules/shuttle/shuttle.dm
@@ -123,7 +123,9 @@
 
 #ifdef DOCKING_PORT_HIGHLIGHT
 //Debug proc used to highlight bounding area
-/obj/docking_port/proc/highlight(_color)
+/obj/docking_port/proc/highlight(_color = "#f00")
+	invisibility = 0
+	layer = GHOST_LAYER
 	var/list/L = return_coords()
 	var/turf/T0 = locate(L[1],L[2],z)
 	var/turf/T1 = locate(L[3],L[4],z)