diff --git a/code/modules/surgery/limb_reattach.dm b/code/modules/surgery/limb_reattach.dm
index 4d81b7eb9ed..41779668aad 100644
--- a/code/modules/surgery/limb_reattach.dm
+++ b/code/modules/surgery/limb_reattach.dm
@@ -106,7 +106,10 @@
 		return SURGERY_BEGINSTEP_ABORT
 	var/list/organ_data = target.dna.species.has_limbs["[user.zone_selected]"]
 	if(isnull(organ_data))
-		to_chat(user, "<span class='warning'>[target.dna.species] don't have the anatomy for [E.name]!")
+		to_chat(user, "<span class='warning'>[target.dna.species] don't have the anatomy for [E.name]!</span>")
+		return SURGERY_BEGINSTEP_ABORT
+	if(E.search_contents_for(/obj/item/organ/internal/brain) && target.get_int_organ(/obj/item/organ/internal/brain))
+		to_chat(user, "<span class='warning'>Both [target] and [E.name] contain a brain, and [target] can't have two brains!</span>")
 		return SURGERY_BEGINSTEP_ABORT
 
 	user.visible_message(