diff --git a/code/modules/mob/living/carbon/human/species/diona.dm b/code/modules/mob/living/carbon/human/species/diona.dm
index 769b6b36d7e..294735c434d 100644
--- a/code/modules/mob/living/carbon/human/species/diona.dm
+++ b/code/modules/mob/living/carbon/human/species/diona.dm
@@ -10,6 +10,7 @@
 
 	burn_mod = 1.25
 	heatmod = 1.5
+	brain_mod = 0
 	var/pod = FALSE //did they come from a pod? If so, they're stronger than normal Diona.
 
 	blurb = "Commonly referred to (erroneously) as 'plant people', the Dionaea are a strange space-dwelling collective \