diff --git a/code/modules/mining/shelter_atoms.dm b/code/modules/mining/shelter_atoms.dm
index ce1ec091890..a4fb893cda4 100644
--- a/code/modules/mining/shelter_atoms.dm
+++ b/code/modules/mining/shelter_atoms.dm
@@ -49,6 +49,8 @@
 		var/turf/deploy_location = get_turf(src)
 		var/status = template.check_deploy(deploy_location)
 		var/turf/above_location = GetAbove(deploy_location)
+		if(!isopenspace(above_location))
+			above_location = null
 		if(above_location && status == SHELTER_DEPLOY_ALLOWED)
 			status = template.check_deploy(above_location)