diff --git a/modular_citadel/code/modules/reagents/reagents/cit_reagents.dm b/modular_citadel/code/modules/reagents/reagents/cit_reagents.dm
index ae77fbcfc0..e46174b5a9 100644
--- a/modular_citadel/code/modules/reagents/reagents/cit_reagents.dm
+++ b/modular_citadel/code/modules/reagents/reagents/cit_reagents.dm
@@ -36,6 +36,10 @@
 /obj/effect/decal/cleanable/semen/New()
 	..()
 	dir = pick(1,2,4,8)
+	add_blood_DNA(list("Non-human DNA" = "A+"))
+
+/obj/effect/decal/cleanable/semen/replace_decal(obj/effect/decal/cleanable/semen/S)
+	S.add_blood_DNA(return_blood_DNA())
 
 /datum/reagent/consumable/femcum
 	name = "Female Ejaculate"