diff --git a/nixos/vault-warden.nix b/nixos/vault-warden.nix
index 9225dbb..abf922c 100644
--- a/nixos/vault-warden.nix
+++ b/nixos/vault-warden.nix
@@ -14,7 +14,7 @@
 
   services.nginx = {
     virtualHosts."vault.sincerity.network" = {
-      useACMEHost = "sincerity.network";
+      useACME = true;
       forceSSL = true;
       extraConfig = ''
         client_max_body_size 128M;