diff --git a/helpers/make-mailman b/helpers/make-mailman
index 67da46b..6bba84f 100644
--- a/helpers/make-mailman
+++ b/helpers/make-mailman
@@ -20,6 +20,7 @@
 VERSION=1
 
 EXTERNAL='deb-src http://ftp.us.debian.org/debian stable main'
+REPOKEY=EF0F382A1A7B6500
 
 . ./config