diff --git a/code/modules/mob/living/simple_animal/hostile/hostile.dm b/code/modules/mob/living/simple_animal/hostile/hostile.dm
index 077564c8e3f..b3b080ca3c0 100644
--- a/code/modules/mob/living/simple_animal/hostile/hostile.dm
+++ b/code/modules/mob/living/simple_animal/hostile/hostile.dm
@@ -608,7 +608,7 @@
 //These two procs handle losing our target if we've failed to attack them for
 //more than lose_patience_timeout deciseconds, which probably means we're stuck
 /mob/living/simple_animal/hostile/proc/GainPatience()
-	if(QDELING(src))
+	if(QDELETED(src))
 		return
 	if(lose_patience_timeout)
 		LosePatience()