diff --git a/code/game/objects/items/stacks/stack.dm b/code/game/objects/items/stacks/stack.dm
index cdaf0c6ba2e..57a91e8fdaa 100644
--- a/code/game/objects/items/stacks/stack.dm
+++ b/code/game/objects/items/stacks/stack.dm
@@ -140,7 +140,7 @@
 
 /obj/item/stack/attackby(obj/item/thing, mob/user, params)
 	if((parent_stack && !istype(thing, merge_type)) || !(parent_stack && thing.type == type))
-		..()
+		return ..()
 
 	var/obj/item/stack/material = thing
 	merge(material)