diff --git a/services/nginx.nix b/services/nginx.nix
index 824ad9b..ea43399 100644
--- a/services/nginx.nix
+++ b/services/nginx.nix
@@ -47,6 +47,13 @@ let
       return 404 "This domain is not configured. Available services: ${serviceNamesMessage}";
     '';
   };
+  acme = {
+    serverName = "_";
+    listen = [ {addr = "0.0.0.0"; port = 80;} ];
+    locations."/.well-known/acme-challenge" = {
+      root = "/var/lib/acme/.challenges";
+    };
+  };
 in {
   services.nginx = {
     enable = true;