diff --git a/code/modules/surgery/organs/ears.dm b/code/modules/surgery/organs/ears.dm
index 846dd1ecbe..63febd1a9f 100644
--- a/code/modules/surgery/organs/ears.dm
+++ b/code/modules/surgery/organs/ears.dm
@@ -100,16 +100,16 @@
 	..()
 	if(istype(H))
 		color = H.hair_color
-		H.dna.species.mutant_bodyparts["ears"] = "Cat"
-		H.dna.features["ears"] = "Cat"
+		H.dna.species.mutant_bodyparts["mam_ears"] = "Cat"
+		H.dna.features["mam_ears"] = "Cat"
 		H.update_body()
 
 /obj/item/organ/ears/cat/Remove(special = FALSE)
 	if(!QDELETED(owner) && ishuman(owner))
 		var/mob/living/carbon/human/H = owner
 		color = H.hair_color
-		H.dna.features["ears"] = "None"
-		H.dna.species.mutant_bodyparts -= "ears"
+		H.dna.features["mam_ears"] = "None"
+		H.dna.species.mutant_bodyparts -= "mam_ears"
 		H.update_body()
 	return ..()
 
diff --git a/code/modules/surgery/organs/tails.dm b/code/modules/surgery/organs/tails.dm
index b1b33b314c..55a656f42d 100644
--- a/code/modules/surgery/organs/tails.dm
+++ b/code/modules/surgery/organs/tails.dm
@@ -21,16 +21,16 @@
 /obj/item/organ/tail/cat/Insert(mob/living/carbon/human/H, special = 0, drop_if_replaced = TRUE)
 	..()
 	if(istype(H))
-		if(!H.dna.species.mutant_bodyparts["tail_human"])
-			H.dna.species.mutant_bodyparts["tail_human"] = tail_type
-			H.dna.features["tail_human"] = tail_type
+		if(!H.dna.species.mutant_bodyparts["mam_tail"])
+			H.dna.species.mutant_bodyparts["mam_tail"] = tail_type
+			H.dna.features["mam_tail"] = tail_type
 			H.update_body()
 
 /obj/item/organ/tail/cat/Remove(special = FALSE)
 	if(!QDELETED(owner) && ishuman(owner))
 		var/mob/living/carbon/human/H = owner
-		H.dna.features["tail_human"] = "None"
-		H.dna.species.mutant_bodyparts -= "tail_human"
+		H.dna.features["mam_tail"] = "None"
+		H.dna.species.mutant_bodyparts -= "mam_tail"
 		color = H.hair_color
 		H.update_body()
 	return ..()