diff --git a/roles/rebuilderd_worker/templates/rebuilderd-worker.conf.j2 b/roles/rebuilderd_worker/templates/rebuilderd-worker.conf.j2
index 1b9132e913b3a116926b8d9c5e4d8b122e282528..2fb7dd8c6978bbc0c00ef89fb61ab6acff15c2d4 100644
--- a/roles/rebuilderd_worker/templates/rebuilderd-worker.conf.j2
+++ b/roles/rebuilderd_worker/templates/rebuilderd-worker.conf.j2
@@ -13,3 +13,6 @@ silent = true
 [diffoscope]
 enabled = true
 max_bytes = 10485760 # 10 MiB
+
+[backend."archlinux"]
+path = "/usr/libexec/rebuilderd/rebuilder-archlinux.sh"