diff --git a/code/game/turfs/simulated/invulnerable_wall.dm b/code/game/turfs/simulated/invulnerable_wall.dm
index 0deb2516659..3be6af28b2b 100644
--- a/code/game/turfs/simulated/invulnerable_wall.dm
+++ b/code/game/turfs/simulated/invulnerable_wall.dm
@@ -56,6 +56,9 @@
 /turf/simulated/wall/invulnerable/ex_act(severity)
 	return // :^)
 
+/turf/simulated/wall/invulnerable/attack_animal()
+	return
+
 /turf/simulated/wall/invulnerable/ice
 	name = "blue ice wall"
 	desc = "The incredible compressive forces that formed this sturdy ice wall gave it a blue color."