diff --git a/code/game/objects/structures/plasticflaps.dm b/code/game/objects/structures/plasticflaps.dm
index bf15ffdfd7..d655581c92 100644
--- a/code/game/objects/structures/plasticflaps.dm
+++ b/code/game/objects/structures/plasticflaps.dm
@@ -8,7 +8,7 @@
 	layer = MOB_LAYER
 	plane = MOB_PLANE
 	explosion_resistance = 5
-	var/can_pass_lying = 1
+	var/can_pass_lying = TRUE
 	var/list/mobs_can_pass = list(
 		/mob/living/bot,
 		/mob/living/simple_mob/slime/xenobio,
@@ -37,7 +37,7 @@
 	if (istype(A, /obj/structure/bed) && B.has_buckled_mobs())//if it's a bed/chair and someone is buckled, it will not pass
 		return 0
 
-	if(istype(A, /obj/vehicle)) //no vehicles
+	if(istype(A, /obj/vehicle) || istype (A, /obj/mecha)) //no vehicles
 		return 0
 
 	var/mob/living/M = A
@@ -66,4 +66,4 @@
 	name = "airtight plastic flaps"
 	desc = "Heavy duty, airtight, plastic flaps. Have extra safety installed, preventing passage of living beings."
 	can_atmos_pass = ATMOS_PASS_NO
-	can_pass_lying = 0
\ No newline at end of file
+	can_pass_lying = FALSE
\ No newline at end of file
diff --git a/code/modules/materials/material_recipes.dm b/code/modules/materials/material_recipes.dm
index 1eab01563c..0fe0f264bb 100644
--- a/code/modules/materials/material_recipes.dm
+++ b/code/modules/materials/material_recipes.dm
@@ -127,7 +127,6 @@
 	recipes += new/datum/stack_recipe("freezer floor tile", /obj/item/stack/tile/floor/freezer, 1, 4, 20)
 	recipes += new/datum/stack_recipe("shower curtain", /obj/structure/curtain, 4, time = 15, one_per_turf = 1, on_floor = 1)
 	recipes += new/datum/stack_recipe("plastic flaps", /obj/structure/plasticflaps, 4, time = 25, one_per_turf = 1, on_floor = 1)
-	recipes += new/datum/stack_recipe("airtight plastic flaps", /obj/structure/plasticflaps/mining, 5, time = 25, one_per_turf = 1, on_floor = 1)
 	recipes += new/datum/stack_recipe("water-cooler", /obj/structure/reagent_dispensers/water_cooler, 4, time = 10, one_per_turf = 1, on_floor = 1)
 	recipes += new/datum/stack_recipe("lampshade", /obj/item/weapon/lampshade, 1, time = 1)
 	recipes += new/datum/stack_recipe("plastic net", /obj/item/weapon/material/fishing_net, 25, time = 1 MINUTE)