diff --git a/code/game/objects/items/stacks/tiles/tile_types.dm b/code/game/objects/items/stacks/tiles/tile_types.dm
index b92eab964a2..da72b17dade 100644
--- a/code/game/objects/items/stacks/tiles/tile_types.dm
+++ b/code/game/objects/items/stacks/tiles/tile_types.dm
@@ -335,6 +335,7 @@
 	mineralType = "metal"
 	armor = list(MELEE = 0, BULLET = 0, LASER = 0, ENERGY = 0, BOMB = 0, RAD = 0, FIRE = 100, ACID = 70)
 	resistance_flags = FIRE_PROOF
+	merge_type = /obj/item/stack/tile/catwalk
 
 /obj/item/stack/tile/catwalk/cyborg
 	energy_type = /datum/robot_storage/energy/catwalk