diff --git a/users/wpcarro/nixos/diogenes/default.nix b/users/wpcarro/nixos/diogenes/default.nix
index b5fa822b7..2ddc668a5 100644
--- a/users/wpcarro/nixos/diogenes/default.nix
+++ b/users/wpcarro/nixos/diogenes/default.nix
@@ -27,7 +27,7 @@ in wpcarro.terraform.googleCloudVM {
 
     resource.google_compute_instance."${name}" = {
       network_interface.access_config = {
-        public_ptr_domain_name = domainName;
+        public_ptr_domain_name = "${domainName}.";
       };
     };
   };