diff --git a/code/__DEFINES/icon_smoothing.dm b/code/__DEFINES/icon_smoothing.dm
index 423762808e0..15c4ef4a91a 100644
--- a/code/__DEFINES/icon_smoothing.dm
+++ b/code/__DEFINES/icon_smoothing.dm
@@ -138,8 +138,9 @@ DEFINE_BITFIELD(smoothing_junction, list(
 #define SMOOTH_GROUP_SURVIVAL_TITANIUM_WALLS S_TURF(59) ///turf/closed/wall/mineral/titanium/survival
 #define SMOOTH_GROUP_TURF_OPEN_CLIFF S_TURF(60) ///turf/open/cliff
 #define SMOOTH_GROUP_HIEROPHANT S_TURF(61) ///turf/closed/indestructible/riveted/hierophant
+#define SMOOTH_GROUP_PLASTINUM_WALLS S_TURF(62) ///turf/closed/indestructible/riveted/plastinum
 
-#define MAX_S_TURF 61 //Always match this value with the one above it.
+#define MAX_S_TURF 62 //Always match this value with the one above it.
 
 #define S_OBJ(num) ("-" + #num + ",")
 /* /obj included */
@@ -159,8 +160,7 @@ DEFINE_BITFIELD(smoothing_junction, list(
 #define SMOOTH_GROUP_PLASTITANIUM_WALLS S_OBJ(14) ///turf/closed/wall/mineral/plastitanium, /obj/structure/falsewall/plastitanium
 #define SMOOTH_GROUP_SURVIVAL_TITANIUM_POD S_OBJ(15) ///turf/closed/wall/mineral/titanium/survival/pod, /obj/machinery/door/airlock/survival_pod, /obj/structure/window/reinforced/shuttle/survival_pod
 #define SMOOTH_GROUP_HIERO_WALL S_OBJ(16) ///obj/effect/temp_visual/elite_tumor_wall, /obj/effect/temp_visual/hierophant/wall
-#define SMOOTH_GROUP_BAMBOO_WALLS S_TURF(17) //![/turf/closed/wall/mineral/bamboo, /obj/structure/falsewall/bamboo]
-#define SMOOTH_GROUP_PLASTINUM_WALLS S_TURF(18) //![turf/closed/indestructible/riveted/plastinum]
+#define SMOOTH_GROUP_BAMBOO_WALLS S_OBJ(17) //![/turf/closed/wall/mineral/bamboo, /obj/structure/falsewall/bamboo]
 
 #define SMOOTH_GROUP_PAPERFRAME S_OBJ(21) ///obj/structure/window/paperframe, /obj/structure/mineral_door/paperframe
 
diff --git a/code/game/objects/structures/false_walls.dm b/code/game/objects/structures/false_walls.dm
index 3b061dc3610..358213fd550 100644
--- a/code/game/objects/structures/false_walls.dm
+++ b/code/game/objects/structures/false_walls.dm
@@ -326,7 +326,7 @@
 	mineral = /obj/item/stack/sheet/mineral/bamboo
 	walltype = /turf/closed/wall/mineral/bamboo
 	smoothing_flags = SMOOTH_BITMASK
-	smoothing_groups = SMOOTH_GROUP_WALLS + SMOOTH_GROUP_BAMBOO_WALLS + SMOOTH_GROUP_CLOSED_TURFS
+	smoothing_groups = SMOOTH_GROUP_BAMBOO_WALLS + SMOOTH_GROUP_WALLS + SMOOTH_GROUP_CLOSED_TURFS
 	canSmoothWith = SMOOTH_GROUP_BAMBOO_WALLS
 
 /obj/structure/falsewall/iron
diff --git a/code/game/turfs/closed/indestructible.dm b/code/game/turfs/closed/indestructible.dm
index f277c361ac3..a32e0a1b145 100644
--- a/code/game/turfs/closed/indestructible.dm
+++ b/code/game/turfs/closed/indestructible.dm
@@ -156,7 +156,7 @@ INITIALIZE_IMMEDIATE(/turf/closed/indestructible/splashscreen)
 	icon_state = "plastinum_wall-0"
 	base_icon_state = "plastinum_wall"
 	smoothing_flags = SMOOTH_BITMASK | SMOOTH_DIAGONAL_CORNERS
-	smoothing_groups = SMOOTH_GROUP_WALLS + SMOOTH_GROUP_PLASTINUM_WALLS + SMOOTH_GROUP_CLOSED_TURFS
+	smoothing_groups = SMOOTH_GROUP_WALLS + SMOOTH_GROUP_CLOSED_TURFS + SMOOTH_GROUP_PLASTINUM_WALLS
 	canSmoothWith = SMOOTH_GROUP_PLASTINUM_WALLS
 
 /turf/closed/indestructible/riveted/plastinum/nodiagonal
diff --git a/code/game/turfs/closed/wall/mineral_walls.dm b/code/game/turfs/closed/wall/mineral_walls.dm
index b7fd3f98d4f..49c4e09c8b3 100644
--- a/code/game/turfs/closed/wall/mineral_walls.dm
+++ b/code/game/turfs/closed/wall/mineral_walls.dm
@@ -197,7 +197,7 @@
 	icon_state = "bamboo_wall-0"
 	base_icon_state = "bamboo_wall"
 	smoothing_flags = SMOOTH_BITMASK
-	smoothing_groups = SMOOTH_GROUP_WALLS + SMOOTH_GROUP_BAMBOO_WALLS + SMOOTH_GROUP_CLOSED_TURFS
+	smoothing_groups = SMOOTH_GROUP_BAMBOO_WALLS + SMOOTH_GROUP_WALLS + SMOOTH_GROUP_CLOSED_TURFS
 	canSmoothWith = SMOOTH_GROUP_BAMBOO_WALLS
 	sheet_type = /obj/item/stack/sheet/mineral/bamboo
 	hardness = 80 //it's not a mineral...
diff --git a/code/modules/transport/tram/tram_structures.dm b/code/modules/transport/tram/tram_structures.dm
index a73e478cc2e..95a57ffdfbb 100644
--- a/code/modules/transport/tram/tram_structures.dm
+++ b/code/modules/transport/tram/tram_structures.dm
@@ -423,7 +423,7 @@
 	icon_state = "bamboo_wall-0"
 	base_icon_state = "wall"
 	smoothing_flags = SMOOTH_BITMASK
-	smoothing_groups = SMOOTH_GROUP_WALLS + SMOOTH_GROUP_BAMBOO_WALLS + SMOOTH_GROUP_CLOSED_TURFS
+	smoothing_groups = SMOOTH_GROUP_BAMBOO_WALLS + SMOOTH_GROUP_WALLS  + SMOOTH_GROUP_CLOSED_TURFS
 	canSmoothWith = SMOOTH_GROUP_BAMBOO_WALLS
 	mineral = /obj/item/stack/sheet/mineral/bamboo
 	tram_wall_type = /obj/structure/tram/alt/bamboo