diff --git a/playbooks/include/proxies-websites.yml b/playbooks/include/proxies-websites.yml
index 74af02404b..15cb47e773 100644
--- a/playbooks/include/proxies-websites.yml
+++ b/playbooks/include/proxies-websites.yml
@@ -482,14 +482,14 @@
 
   - role: httpd/website
     name: osbs.fedoraproject.org
-    server-aliases: [osbs.stg.fedoraproject.org]
+    server_aliases: [osbs.stg.fedoraproject.org]
     sslonly: true
     cert_name: "{{wildcard_cert_name}}"
     when: env == "staging"
 
   - role: httpd/website
     name: registry.fedoraproject.org
-    server-aliases: [registry.stg.fedoraproject.org]
+    server_aliases: [registry.stg.fedoraproject.org]
     sslonly: true
     cert_name: "{{wildcard_cert_name}}"
     when: env == "staging"