diff --git a/code/controllers/subsystem/icon_smooth.dm b/code/controllers/subsystem/icon_smooth.dm
index bd676bacec..6f4040299a 100644
--- a/code/controllers/subsystem/icon_smooth.dm
+++ b/code/controllers/subsystem/icon_smooth.dm
@@ -3,6 +3,7 @@ SUBSYSTEM_DEF(icon_smooth)
 	init_order = INIT_ORDER_ICON_SMOOTHING
 	wait = 1
 	priority = FIRE_PRIOTITY_SMOOTHING
+	flags = SS_TICKER
 
 	var/list/smooth_queue = list()
 	var/list/deferred = list()