diff --git a/code/modules/reagents/Chemistry-Reagents.dm b/code/modules/reagents/Chemistry-Reagents.dm
index 6389ab94eef..51ec827779c 100644
--- a/code/modules/reagents/Chemistry-Reagents.dm
+++ b/code/modules/reagents/Chemistry-Reagents.dm
@@ -1280,9 +1280,9 @@ datum
 				if(ishuman(M))
 					var/mob/living/carbon/human/H = M
 
-					//Peridaxon is hard enough to get, it's probably fair to make this all internal organs
+					//Peridaxon heals only non-robotic organs
 					for(var/datum/organ/internal/I in H.internal_organs)
-						if(I.damage > 0)
+						if((I.damage > 0) && (I.robotic != 2))
 							I.damage = max(I.damage - 0.20, 0)
 				..()
 				return