diff --git a/map-controller/files/etc/config/mapcontroller b/map-controller/files/etc/config/mapcontroller
index ad42c8843..632c87e4f 100644
--- a/map-controller/files/etc/config/mapcontroller
+++ b/map-controller/files/etc/config/mapcontroller
@@ -8,7 +8,7 @@ config controller 'controller'
 	option enable_ts '0'
 	option primary_vid '1'
 	option primary_pcp '0'
-	option stale_sta_timeout '30d'
+	option stale_sta_timeout '20d'
 	option de_collect_interval '60'
 
 config sta_steering