diff --git a/code/modules/surgery/implant.dm b/code/modules/surgery/implant.dm
index a8667638dea..5eeba4ab50b 100644
--- a/code/modules/surgery/implant.dm
+++ b/code/modules/surgery/implant.dm
@@ -175,11 +175,11 @@
 		to_chat(user, "<span class='warning'>Central command would kill you if you implanted the disk into someone.</span>")
 		return 0//fail
 
-	if(istype(tool, /obj/item/weapon/storage/box))
-		for(var/obj/item/I in tool.contents)
-			if(istype(I, /obj/item/weapon/disk/nuclear))
-				to_chat(user, "<span class='warning'>Central command would kill you if you implanted the disk into someone. Even if in a box. Especially in a box.</span>")
-				return 0//fail
+	if(istype(tool, /obj/item/weapon/storage))
+		var/obj/item/weapon/disk/nuclear/datdisk = locate() in tool
+		if(datdisk)
+			to_chat(user, "<span class='warning'>Central command would kill you if you implanted the disk into someone. Even if in a box. Especially in a box.</span>")
+			return 0//fail
 
 	if(istype(tool,/obj/item/organ))
 		to_chat(user, "<span class='warning'>This isn't the type of surgery for organ transplants!</span>")