diff --git a/code/game/turfs/unsimulated/walls.dm b/code/game/turfs/unsimulated/walls.dm
index 12d4d3fadc..6f13cdb54b 100644
--- a/code/game/turfs/unsimulated/walls.dm
+++ b/code/game/turfs/unsimulated/walls.dm
@@ -4,6 +4,7 @@
 	icon_state = "riveted"
 	opacity = 1
 	density = 1
+	blocks_air = TRUE
 
 /turf/unsimulated/wall/fakeglass
 	name = "window"