diff --git a/code/game/objects/items/stacks/sheets/sheet_types.dm b/code/game/objects/items/stacks/sheets/sheet_types.dm
index ada50c6b2aa..197a11eeb4a 100644
--- a/code/game/objects/items/stacks/sheets/sheet_types.dm
+++ b/code/game/objects/items/stacks/sheets/sheet_types.dm
@@ -96,6 +96,7 @@ var/global/list/datum/stack_recipe/metal_recipes = list ( \
 	origin_tech = "materials=1"
 
 /obj/item/stack/sheet/metal/cyborg
+	materials = list()
 
 /obj/item/stack/sheet/metal/New(var/loc, var/amount=null)
 	recipes = metal_recipes
diff --git a/code/modules/mob/living/silicon/robot/robot_modules.dm b/code/modules/mob/living/silicon/robot/robot_modules.dm
index 2e69b38c18b..194f76770e9 100644
--- a/code/modules/mob/living/silicon/robot/robot_modules.dm
+++ b/code/modules/mob/living/silicon/robot/robot_modules.dm
@@ -176,7 +176,7 @@
 		/obj/item/stack/sheet/rglass/cyborg = 50,
 		/obj/item/stack/cable_coil/cyborg = 50,
 		/obj/item/stack/rods/cyborg = 60,
-		/obj/item/stack/tile/plasteel/cyborg = 20
+		/obj/item/stack/tile/plasteel = 20
 		)
 
 /obj/item/weapon/robot_module/engineering/New()
@@ -462,9 +462,9 @@
 	stacktypes = list(
 		/obj/item/stack/sheet/wood/cyborg = 10,
 		/obj/item/stack/sheet/rglass/cyborg = 50,
-		/obj/item/stack/tile/wood/cyborg = 20,
-		/obj/item/stack/rods/cyborg/ = 60,
-		/obj/item/stack/tile/plasteel/cyborg = 20,
+		/obj/item/stack/tile/wood = 20,
+		/obj/item/stack/rods/cyborg = 60,
+		/obj/item/stack/tile/plasteel = 20,
 		/obj/item/stack/sheet/metal/cyborg = 50,
 		/obj/item/stack/sheet/glass/cyborg = 50,
 		/obj/item/stack/cable_coil/cyborg = 30