From 3c3fa56445f629d0703f30962bd6d80e1751bae5 Mon Sep 17 00:00:00 2001
From: harryob <55142896+harryob@users.noreply.github.com>
Date: Thu, 7 Dec 2023 21:15:34 +0000
Subject: [PATCH] fixes is_interior()

---
 code/controllers/subsystem/interior.dm | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/code/controllers/subsystem/interior.dm b/code/controllers/subsystem/interior.dm
index 8fb7ffbfeee7..8abc3179f191 100644
--- a/code/controllers/subsystem/interior.dm
+++ b/code/controllers/subsystem/interior.dm
@@ -51,10 +51,16 @@ SUBSYSTEM_DEF(interior)
 	if(!isturf(loc))
 		loc = get_turf(loc)
 
-	var/datum/weakref/reservation = SSmapping.used_turfs[loc]
+	var/datum/weakref/reservation_weakref = SSmapping.used_turfs[loc]
+
+	if(!reservation_weakref)
+		return
+
+	var/datum/turf_reservation/interior/reservation = reservation_weakref.resolve()
 
 	if(!istype(reservation))
 		return FALSE
+
 	return TRUE
 
 #undef INTERIOR_BORDER_SIZE