diff --git a/code/modules/mob/mob_holder.dm b/code/modules/mob/mob_holder.dm
index dee0d5aeafe..b3a4c024d75 100644
--- a/code/modules/mob/mob_holder.dm
+++ b/code/modules/mob/mob_holder.dm
@@ -114,6 +114,7 @@
 	desc = "It's a small, disease-ridden rodent."
 	icon = 'icons/mob/animal.dmi'
 	icon_state = "mouse_gray"
+	w_class = WEIGHT_CLASS_SMALL
 
 /obj/item/holder/bunny
 	name = "bunny"