diff --git a/code/modules/reagents/chemistry/reagents/toxins.dm b/code/modules/reagents/chemistry/reagents/toxins.dm
index 499dde8beef..28ed544cb18 100644
--- a/code/modules/reagents/chemistry/reagents/toxins.dm
+++ b/code/modules/reagents/chemistry/reagents/toxins.dm
@@ -391,10 +391,10 @@
 	reagent_state = LIQUID
 	taste_description = "vinegar"
 
-/datum/reagent/acetic_acid/reaction_mob(mob/M, method = TOUCH, volume)
+/datum/reagent/acetic_acid/reaction_mob(mob/M, method = REAGENT_TOUCH, volume)
 	if(ishuman(M))
 		var/mob/living/carbon/human/H = M
-		if(method == TOUCH)
+		if(method == REAGENT_TOUCH)
 			if(H.wear_mask || H.head)
 				return
 			if(volume >= 50 && prob(75))