diff --git a/wud/stack.env b/wud/stack.env
index cb4850c..ee1c0b7 100644
--- a/wud/stack.env
+++ b/wud/stack.env
@@ -25,6 +25,6 @@ WUD_WATCHER_EXTDOCKER_PORT=2376
 WUD_WATCHER_EXTDOCKER_CERTFILE=/certs/cert.pem
 WUD_WATCHER_EXTDOCKER_CAFILE=/certs/ca.pem
 WUD_WATCHER_EXTDOCKER_KEYFILE=/certs/key.pem
-
+WUD_WATCHER_EXTDOCKER_CRON=*/5 * * * *
 
 WUD_WATCHER_MSERVER_SOCKET=/var/run/docker.sock
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