diff --git a/code/game/objects/random/mob.dm b/code/game/objects/random/mob.dm
index d0cee5dff0..be1222aabe 100644
--- a/code/game/objects/random/mob.dm
+++ b/code/game/objects/random/mob.dm
@@ -240,6 +240,7 @@
 
 /obj/random/mob/mouse/item_to_spawn()
 	return pick(prob(15);/mob/living/simple_mob/animal/passive/mouse/white,
+				prob(15);/mob/living/simple_mob/animal/passive/mouse/black,
 				prob(30);/mob/living/simple_mob/animal/passive/mouse/brown,
 				prob(30);/mob/living/simple_mob/animal/passive/mouse/gray,
 				prob(30);/mob/living/simple_mob/animal/passive/mouse/rat)