diff --git a/machines/b4l/configuration.nix b/machines/b4l/configuration.nix
index 3b14865..a62ce37 100644
--- a/machines/b4l/configuration.nix
+++ b/machines/b4l/configuration.nix
@@ -19,4 +19,18 @@
   services.nginx.virtualHosts."${config.networking.fqdn}" = {
     enableACME = true;
   };
+
+  clan.core.vars.generators.acme = {
+    share = true;
+    files.email.secret = false;
+
+    prompts.email = {
+      type = "line";
+      description = "Email for ACME registeration";
+    };
+
+    script = ''
+      cat $prompts/email > $out/email
+    '';
+  };
 }