diff --git a/code/LINDA/LINDA_turf_tile.dm b/code/LINDA/LINDA_turf_tile.dm
index ce755c8d5b3..52117c1fbf1 100644
--- a/code/LINDA/LINDA_turf_tile.dm
+++ b/code/LINDA/LINDA_turf_tile.dm
@@ -238,7 +238,7 @@
 	archived_cycle = air_master.current_cycle
 
 /turf/simulated/proc/update_visuals()
-	overlays = 0
+	overlays = list()
 	if(icy)
 		overlays += icemaster