diff --git a/code/modules/mob/living/brain/posibrain.dm b/code/modules/mob/living/brain/posibrain.dm
index 173b68fc3c..505f49ad3f 100644
--- a/code/modules/mob/living/brain/posibrain.dm
+++ b/code/modules/mob/living/brain/posibrain.dm
@@ -193,3 +193,6 @@ GLOBAL_VAR(posibrain_notify_cooldown)
 		icon_state = "[initial(icon_state)]-occupied"
 	else
 		icon_state = initial(icon_state)
+
+/obj/item/mmi/posibrain/add_mmi_overlay
+	return