diff --git a/kickstart/files/kickstart.cfg b/kickstart/files/kickstart.cfg
index f0e044fb..6f179900 100644
--- a/kickstart/files/kickstart.cfg
+++ b/kickstart/files/kickstart.cfg
@@ -2726,6 +2726,13 @@ else  # vlan
         # during an upgrade the controller.internal may not be defined
         # but the scenario could be IPv6. So try to resolve the controller
         ipv6_addr=$(dig +short AAAA controller)
+
+        # due to the alias in the /etc/dnsmasq.conf:
+        #     cname=controller,controller.internal
+        # An IPv4 scenario may answer "controller.internal." even for an IPv6 DIG
+        # for this reason, remove the "controller.internal." from the result
+        fqdn_pattern="controller.internal."
+        ipv6_addr=${ipv6_addr/${fqdn_pattern}/}
     fi
 
     if [[ -n "${ipv6_addr}" ]]