diff --git a/services_web.yml b/services_web.yml
index 86ff78c..f368d9f 100755
--- a/services_web.yml
+++ b/services_web.yml
@@ -19,7 +19,8 @@
       mail: tech.aurore@lists.crans.org
       certname: auro.re
       domains: "auro.re, *.auro.re, aurores.net, *.aurores.net, fede-aurore.net, *.fede-aurore.net"
-      dns_masters_ipv4: 92.222.211.196
+      dns_masters_ipv4:
+        - "92.222.211.196"
     nginx:
       ssl:
         cert: /etc/letsencrypt/live/auro.re/fullchain.pem