diff --git a/code/game/objects/items/weapons/dna_injector.dm b/code/game/objects/items/weapons/dna_injector.dm
index 0bfcd30ef15..87bd6a78d5d 100644
--- a/code/game/objects/items/weapons/dna_injector.dm
+++ b/code/game/objects/items/weapons/dna_injector.dm
@@ -62,7 +62,7 @@
 
 /obj/item/weapon/dnainjector/proc/inject(mob/living/M as mob, mob/user as mob)
 	if(istype(M,/mob/living))
-		M.apply_effect(rand(10,25),IRRADIATE,-1)
+		M.apply_effect(rand(10,25),IRRADIATE,0,1)
 
 	if (!(NOCLONE in M.mutations)) // prevents drained people from having their DNA changed
 		// UI in syringe.
diff --git a/code/modules/mob/living/damage_procs.dm b/code/modules/mob/living/damage_procs.dm
index dfd271b1507..92a85a4ced3 100644
--- a/code/modules/mob/living/damage_procs.dm
+++ b/code/modules/mob/living/damage_procs.dm
@@ -44,7 +44,7 @@
 
 
 
-/mob/living/proc/apply_effect(var/effect = 0,var/effecttype = STUN, var/blocked = 0)
+/mob/living/proc/apply_effect(var/effect = 0,var/effecttype = STUN, var/blocked = 0, var/negate_armor = 0)
 	blocked = (100-blocked)/100
 	if(!effect || (blocked <= 0))	
 		return 0
@@ -59,7 +59,7 @@
 			halloss += effect // Useful for objects that cause "subdual" damage. PAIN!
 		if(IRRADIATE)
 			var/rad_damage = effect
-			if(blocked != -1) // Setting blocked to -1 overrides radiation armor checks, which are automatic otherwise
+			if(negate_armor) // Setting negate_armor overrides radiation armor checks, which are automatic otherwise
 				rad_damage = max(effect * ((100-run_armor_check(null, "rad", "Your clothes feel warm.", "Your clothes feel warm."))/100),0)
 			radiation += rad_damage
 		if(SLUR)