diff --git a/inventory/group_vars/libravatar b/inventory/group_vars/libravatar
index cf65379d75..e03c6a9df9 100644
--- a/inventory/group_vars/libravatar
+++ b/inventory/group_vars/libravatar
@@ -1,5 +1,5 @@
 resolvconf: "resolv.conf/cloud"
 git_branch: master
 server_name: www.libravatar.org
-server_alias: *.libravatar.org
+server_alias: "*.libravatar.org"
 server_redirect_name: "libravatar.org libravatar.com www.libravatar.com"