diff --git a/code/ZAS/Atom.dm b/code/ZAS/Atom.dm
index 0457dce1a5..de91df365f 100644
--- a/code/ZAS/Atom.dm
+++ b/code/ZAS/Atom.dm
@@ -22,8 +22,6 @@
 		else
 			return can_atmos_pass
 
-/turf/can_atmos_pass = ATMOS_PASS_NO
-
 /turf/CanPass(atom/movable/mover, turf/target)
 	if(!target) return FALSE