diff --git a/code/game/turfs/closed/indestructible.dm b/code/game/turfs/closed/indestructible.dm
index 0ef3d8b6bc2..1ab16813530 100644
--- a/code/game/turfs/closed/indestructible.dm
+++ b/code/game/turfs/closed/indestructible.dm
@@ -223,8 +223,8 @@ SKYRAT EDIT REMOVAL END */
 
 /turf/closed/indestructible/fakeglass/Initialize(mapload)
 	. = ..()
-	underlays += mutable_appearance('icons/obj/structures.dmi', "grille", layer - 0.01) //add a grille underlay
-	underlays += mutable_appearance('icons/turf/floors.dmi', "plating", layer - 0.02) //add the plating underlay, below the grille
+	underlays += mutable_appearance('icons/obj/structures.dmi', "grille", layer - 0.01, src) //add a grille underlay
+	underlays += mutable_appearance('icons/turf/floors.dmi', "plating", layer - 0.02, src) //add the plating underlay, below the grille
 
 /turf/closed/indestructible/opsglass
 	name = "window"
@@ -238,9 +238,8 @@ SKYRAT EDIT REMOVAL END */
 
 /turf/closed/indestructible/opsglass/Initialize(mapload)
 	. = ..()
-	icon_state = null
-	underlays += mutable_appearance('icons/obj/structures.dmi', "grille", layer - 0.01)
-	underlays += mutable_appearance('icons/turf/floors.dmi', "plating", layer - 0.02)
+	underlays += mutable_appearance('icons/obj/structures.dmi', "grille", layer - 0.01, src)
+	underlays += mutable_appearance('icons/turf/floors.dmi', "plating", layer - 0.02, src)
 
 /turf/closed/indestructible/fakedoor
 	name = "airlock"
@@ -377,7 +376,7 @@ SKYRAT EDIT REMOVAL END */
 
 /turf/closed/indestructible/resin/membrane/Initialize(mapload)
 	. = ..()
-	underlays += mutable_appearance('icons/turf/floors.dmi', "engine") // add the reinforced floor underneath
+	underlays += mutable_appearance('icons/turf/floors.dmi', "engine", layer - 0.01, src) // add the reinforced floor underneath
 
 /turf/closed/indestructible/grille
 	name = "grille"
@@ -387,7 +386,7 @@ SKYRAT EDIT REMOVAL END */
 
 /turf/closed/indestructible/grille/Initialize(mapload)
 	. = ..()
-	underlays += mutable_appearance('icons/turf/floors.dmi', "plating")
+	underlays += mutable_appearance('icons/turf/floors.dmi', "plating", layer - 0.01, src)
 
 /turf/closed/indestructible/meat
 	name = "dense meat wall"