diff --git a/helpers/make-rdiff-backup b/helpers/make-rdiff-backup
index ebbbb3e..a798da5 100644
--- a/helpers/make-rdiff-backup
+++ b/helpers/make-rdiff-backup
@@ -19,6 +19,7 @@
 
 VERSION=1
 EXTERNAL='deb-src http://archive.ubuntu.com/ubuntu bionic universe'
+BACKPORTS=true
 
 . ./config