diff --git a/source/setup/provision.zone b/source/setup/provision.zone
index bb0f890386a..371dfd9e724 100644
--- a/source/setup/provision.zone
+++ b/source/setup/provision.zone
@@ -1,3 +1,4 @@
+; -*- zone -*-
 ; generated by provision.pl
 $ORIGIN ${DNSDOMAIN}.
 $TTL 1W