diff --git a/recipes/alpine/templates/conf/matchbox/init.d/matchbox.pktpl.hcl b/recipes/alpine/templates/conf/matchbox/init.d/matchbox.pktpl.hcl
index 6f47f95..6652098 100644
--- a/recipes/alpine/templates/conf/matchbox/init.d/matchbox.pktpl.hcl
+++ b/recipes/alpine/templates/conf/matchbox/init.d/matchbox.pktpl.hcl
@@ -17,7 +17,7 @@ start_pre() {
                 /run/$RC_SVCNAME /var/log/$RC_SVCNAME
         if [ ! -f "/etc/matchbox/server.crt" ]; then
                 cd /root/tls
-                export SAN="DNS.1:${Vars.MatchBox.URL},IP.1:${Vars.ETH0.IP}"
+                export SAN="DNS.1:${Vars.MatchBox.Hostname},IP.1:${Vars.ETH0.IP}"
                 ./cert-gen
                 mkdir -p /etc/matchbox
                 cp ca.crt server.crt server.key /etc/matchbox