diff --git a/Dockerfile b/Dockerfile
index df13faf..c7110c4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,6 +5,7 @@ ENV PFSENSE_USER=backupuser
 ENV PFSENSE_PASS=changeme
 ENV PFSENSE_SCHEME=https
 ENV BACKUPNAME=router
+ENV PFSENSE_CRON_SCHEDULE='0 0 * * *'
 
 RUN apk update ; apk upgrade ; apk add wget ; apk add --no-cache tzdata ; apk add --no-cache bash