diff --git a/code/datums/spells/horsemask.dm b/code/datums/spells/horsemask.dm
index 28a77291993..3d2ab9d4718 100644
--- a/code/datums/spells/horsemask.dm
+++ b/code/datums/spells/horsemask.dm
@@ -12,7 +12,6 @@
 	range = 7
 	cooldown_min = 30 //30 deciseconds reduction per rank
 	selection_type = "range"
-	var/list/compatible_mobs = list(/mob/living/carbon/human)
 
 	action_icon_state = "barn"