diff --git a/code/game/machinery/ARES/ARES_interface_admin.dm b/code/game/machinery/ARES/ARES_interface_admin.dm
index 10fc491dfa0f..40de6dc795a7 100644
--- a/code/game/machinery/ARES/ARES_interface_admin.dm
+++ b/code/game/machinery/ARES/ARES_interface_admin.dm
@@ -250,12 +250,12 @@
 	data["records_tech"] = logged_techs
 
 	var/list/security_vents = list()
-	for(var/obj/structure/pipes/vents/pump/no_boom/gas/vent as anything in link.linked_vents)
+	for(var/obj/structure/pipes/vents/pump/no_boom/gas/vent as anything in linked_vents)
 		if(!istype(vent))
 			continue
 		if(!vent.vent_tag)
-			vent.vent_tag = "Security Vent #[link.tag_num]"
-			link.tag_num++
+			vent.vent_tag = "Security Vent #[tag_num]"
+			tag_num++
 
 		var/list/current_vent = list()
 		var/is_available = TRUE