diff --git a/code/modules/mob/living/carbon/alien/humanoid/alien_powers.dm b/code/modules/mob/living/carbon/alien/humanoid/alien_powers.dm
index 0df0bf0ecb5..caad9426ad6 100644
--- a/code/modules/mob/living/carbon/alien/humanoid/alien_powers.dm
+++ b/code/modules/mob/living/carbon/alien/humanoid/alien_powers.dm
@@ -66,10 +66,10 @@ Also perhaps only queens can do that?
 				if (get_dist(A,M) == 0)
 					for(var/mob/O in viewers(src, null))
 						O.show_message(text("\green <B>[src] has spat at [M.name]!</B>"), 1)
-					if (!istype(M:l_hand, /obj/item/weapon/shield/riot) && prob(50))
+					if (istype(M:l_hand, /obj/item/weapon/shield/riot) && prob(50))
 						del(A)
 						return
-					if (!istype(M:r_hand, /obj/item/weapon/shield/riot) && prob(50))
+					if (istype(M:r_hand, /obj/item/weapon/shield/riot) && prob(50))
 						del(A)
 						return
 					M.weakened += 5