diff --git a/code/game/world.dm b/code/game/world.dm
index a66ea72195c..c11f5c2f83a 100644
--- a/code/game/world.dm
+++ b/code/game/world.dm
@@ -359,6 +359,7 @@ GLOBAL_LIST(topic_status_cache)
 	maxz++
 	SSmobs.MaxZChanged()
 	SSidlenpcpool.MaxZChanged()
+	world.refresh_atmos_grid()
 
 /// Auxtools atmos
 /world/proc/refresh_atmos_grid()