diff --git a/seed/dns-local/dictionaries/13_dns-local.xml b/seed/dns-local/dictionaries/13_dns-local.xml
index 9d1f6a03..aed74f03 100644
--- a/seed/dns-local/dictionaries/13_dns-local.xml
+++ b/seed/dns-local/dictionaries/13_dns-local.xml
@@ -10,7 +10,7 @@
       <variable name="dns_is_only_local" type="boolean" description="DNS resolve only local address" hidden="True">
         <value>True</value>
       </variable>
-      <variable name="dns_client_address" type="domainname" description="Nom de domaine du serveur DNS" supplier="LocalDNS" hidden="True"/>
+      <variable name="dns_client_address" type="domainname" description="Nom de domaine du serveur DNS" supplier="LocalDNS" hidden="True" mandatory="True"/>
       <variable name="ip_dns" type="ip" description="Adresse IP du serveur DNS" hidden="True"/>
     </family>
   </variables>