From 779ba7ac89ad80b26c7c9b919007fafd5f472b51 Mon Sep 17 00:00:00 2001
From: CitadelStationBot <citadelstationcommunity@gmail.com>
Date: Thu, 11 May 2017 20:26:52 -0500
Subject: [PATCH] Fixes a GC error with holocalls (#903)

---
 code/game/machinery/hologram.dm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/code/game/machinery/hologram.dm b/code/game/machinery/hologram.dm
index bc73c41f08..03ec33ca25 100644
--- a/code/game/machinery/hologram.dm
+++ b/code/game/machinery/hologram.dm
@@ -61,6 +61,7 @@ GLOBAL_LIST_EMPTY(holopads)
 /obj/machinery/holopad/Destroy()
 	if(outgoing_call)
 		LAZYADD(holo_calls, outgoing_call)
+		outgoing_call = null
 
 	for(var/I in holo_calls)
 		var/datum/holocall/HC = I