diff --git a/xos/observers/vcpe/steps/sync_vcpetenant.yaml b/xos/observers/vcpe/steps/sync_vcpetenant.yaml
index d45b38a..6c2bad4 100644
--- a/xos/observers/vcpe/steps/sync_vcpetenant.yaml
+++ b/xos/observers/vcpe/steps/sync_vcpetenant.yaml
@@ -16,6 +16,10 @@
         {% for firewall_rule in firewall_rules.split("\n") %}
         - {{ firewall_rule }}
         {% endfor %}
+      cdn_prefixes:
+        {% for prefix in cdn_prefixes %}
+        - {{ prefix }}
+        {% endfor %}
 
   tasks:
     - name: make sure /etc/dnsmasq.d exists