From d6d65c09646df4fac4e430fbeeb83ed8a1287f62 Mon Sep 17 00:00:00 2001
From: Casey <a.roaming.shadow@gmail.com>
Date: Sat, 20 Nov 2021 05:38:44 -0500
Subject: [PATCH] Merge pull request #11862 from Heroman3003/stairfix3

Fixes #11861
---
 code/modules/multiz/stairs.dm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/code/modules/multiz/stairs.dm b/code/modules/multiz/stairs.dm
index 99b015c6c2..c989416eba 100644
--- a/code/modules/multiz/stairs.dm
+++ b/code/modules/multiz/stairs.dm
@@ -395,7 +395,7 @@
 
 /obj/structure/stairs/top/Uncrossed(var/atom/movable/AM)
 	// Going down stairs from the topstair piece
-	if(AM.dir == turn(dir, 180) && check_integrity())
+	if(AM.dir == turn(dir, 180) && isturf(AM.loc) && check_integrity())
 		use_stairs_instant(AM)
 		return