diff --git a/prom-seed.cfg b/prom-seed.cfg
index e910ff1..e22cf13 100644
--- a/prom-seed.cfg
+++ b/prom-seed.cfg
@@ -39,6 +39,10 @@ d-i netcfg/hostname string prometh
 d-i netcfg/wireless_wep string
 
 ### Mirror settings
+d-i mirror/https/mirror select deb.debian.org
+d-i mirror/https/directory string /debian/
+d-i mirror/https/proxy string
+d-i mirror/https/hostname string mirror
 
 choose-mirror-bin mirror/protocol select http
 choose-mirror-bin mirror/country string US