diff --git a/code/modules/mob/living/living.dm b/code/modules/mob/living/living.dm
index e4aee188e0..b6c210ae44 100644
--- a/code/modules/mob/living/living.dm
+++ b/code/modules/mob/living/living.dm
@@ -941,7 +941,7 @@
 /mob/living/rad_act(amount)
 	. = ..()
 
-	if(!amount || amount < RAD_MOB_SKIN_PROTECTION)
+	if(!amount || (amount < RAD_MOB_SKIN_PROTECTION) || has_trait(TRAIT_RADIMMUNE))
 		return
 
 	amount -= RAD_BACKGROUND_RADIATION // This will always be at least 1 because of how skin protection is calculated