diff --git a/code/datums/mutations/passive.dm b/code/datums/mutations/passive.dm
index a8724dd1376..6024d212be0 100644
--- a/code/datums/mutations/passive.dm
+++ b/code/datums/mutations/passive.dm
@@ -11,3 +11,21 @@
 /datum/mutation/human/biotechcompat/on_losing(mob/living/carbon/human/owner)
 	owner.adjust_skillchip_complexity_modifier(-1)
 	return ..()
+
+/datum/mutation/human/clever
+	name = "Clever"
+	desc = "Causes the subject to feel just a little bit smarter. Most effective in specimens with low levels of intelligence."
+	quality = POSITIVE
+	instability = 20
+	text_gain_indication = "<span class='danger'>You feel a little bit smarter.</span>"
+	text_lose_indication = "<span class='danger'>Your mind feels a little bit foggy.</span>"
+
+/datum/mutation/human/clever/on_acquiring(mob/living/carbon/human/owner)
+	if(..())
+		return
+	ADD_TRAIT(owner, TRAIT_ADVANCEDTOOLUSER, GENETIC_MUTATION)
+
+/datum/mutation/human/clever/on_losing(mob/living/carbon/human/owner)
+	if(..())
+		return
+	REMOVE_TRAIT(owner, TRAIT_ADVANCEDTOOLUSER, GENETIC_MUTATION)