diff --git a/code/modules/mob/living/carbon/human/life.dm b/code/modules/mob/living/carbon/human/life.dm
index ab650a8ec94..5e78eab0774 100644
--- a/code/modules/mob/living/carbon/human/life.dm
+++ b/code/modules/mob/living/carbon/human/life.dm
@@ -916,9 +916,9 @@
 					see_in_dark = 2
 
 				var/seer = 0
-				for(var/obj/effect/rune/R in world)
-					if(loc==R.loc && R.word1==wordsee && R.word2==wordhell && R.word3==wordjoin)
-						seer = 1
+				var/obj/effect/rune/R = locate() in loc
+				if (istype(R) && R.word1 == wordsee && R.word2 == wordhell && R.word3 == wordjoin)
+					seer = 1
 				if(!seer)
 					see_invisible = 0