diff --git a/code/modules/mob/living/simple_mob/subtypes/animal/space/worm.dm b/code/modules/mob/living/simple_mob/subtypes/animal/space/worm.dm
index ea725bce51f..d53f65fd3e4 100644
--- a/code/modules/mob/living/simple_mob/subtypes/animal/space/worm.dm
+++ b/code/modules/mob/living/simple_mob/subtypes/animal/space/worm.dm
@@ -31,7 +31,7 @@
 
 	organ_names = /decl/mob_organ_names/wormlike
 
-	ai_holder_type = null
+	ai_holder_type = /datum/ai_holder/simple_mob/inert
 
 	mob_class = MOB_CLASS_ABERRATION	// It's a monster.