diff --git a/code/game/mecha/equipment/weapons/weapons.dm b/code/game/mecha/equipment/weapons/weapons.dm
index ba98e8b6ad8..13a6887278b 100644
--- a/code/game/mecha/equipment/weapons/weapons.dm
+++ b/code/game/mecha/equipment/weapons/weapons.dm
@@ -420,7 +420,7 @@
 	do_after_cooldown()
 
 /obj/item/mecha_parts/mecha_equipment/weapon/ballistic/missile_rack/cleaner/can_attach(obj/mecha/nkarrdem/M as obj)
-	return ..() && istype(M)
+	return istype(M) && length(M.equipment) < M.max_equip
 
 /obj/item/mecha_parts/mecha_equipment/weapon/ballistic/missile_rack/banana_mortar
 	equip_cooldown = 2 SECONDS