diff --git a/code/game/objects/effects/anomalies.dm b/code/game/objects/effects/anomalies.dm
index 129a7bf0100..bb1ab0fd8dc 100644
--- a/code/game/objects/effects/anomalies.dm
+++ b/code/game/objects/effects/anomalies.dm
@@ -21,7 +21,7 @@
 	poi_list |= src
 
 /obj/effect/anomaly/Destroy()
-	aSignal = null
+	QDEL_NULL(aSignal)
 	poi_list.Remove(src)
 	return ..()