diff --git a/code/modules/mapfluff/ruins/objects_and_mobs/necropolis_gate.dm b/code/modules/mapfluff/ruins/objects_and_mobs/necropolis_gate.dm
index 8dc9cec326d..860eb8c8168 100644
--- a/code/modules/mapfluff/ruins/objects_and_mobs/necropolis_gate.dm
+++ b/code/modules/mapfluff/ruins/objects_and_mobs/necropolis_gate.dm
@@ -15,6 +15,7 @@
 	resistance_flags = INDESTRUCTIBLE | LAVA_PROOF | FIRE_PROOF | UNACIDABLE | ACID_PROOF
 	light_range = 8
 	light_color = LIGHT_COLOR_LAVA
+	can_atmos_pass = ATMOS_PASS_DENSITY
 	var/open = FALSE
 	var/changing_openness = FALSE
 	var/locked = FALSE