diff --git a/helpers/make-mountmedia b/helpers/make-mountmedia
index 937d4de..08f899a 100644
--- a/helpers/make-mountmedia
+++ b/helpers/make-mountmedia
@@ -23,8 +23,10 @@
 # or fetch such packages from Debian in order to build the required udeb packages.
 ##
 
-VERSION=0
+VERSION=1
 NETINST=true
+EXTERNAL='deb-src http://ftp.debian.org/debian stable main'
+REPOKEY=648ACFD622F3D138
 . ./config