diff --git a/code/controllers/subsystem/processing/overlays.dm b/code/controllers/subsystem/processing/overlays.dm
index c856ab165b..2d500b704c 100644
--- a/code/controllers/subsystem/processing/overlays.dm
+++ b/code/controllers/subsystem/processing/overlays.dm
@@ -27,11 +27,12 @@ PROCESSING_SUBSYSTEM_DEF(overlays)
 	processing = SSoverlays.processing
 
 /datum/controller/subsystem/processing/overlays/fire(resumed = FALSE, mc_check = TRUE)
+	var/list/processing = src.processing
 	while(processing.len)
 		var/atom/thing = processing[processing.len]
 		processing.len--
 		if(thing)
-			thing.compile_overlays(FALSE)
+			thing.compile_overlays()
 		if(mc_check)
 			if(MC_TICK_CHECK)
 				break