diff --git a/modules/services/nginx/default.nix b/modules/services/nginx/default.nix
index 492f6c8..46710d2 100644
--- a/modules/services/nginx/default.nix
+++ b/modules/services/nginx/default.nix
@@ -387,7 +387,7 @@ in
     users.users.nginx.extraGroups = [ "acme" ];
 
     security.acme = {
-      email = "bruno.acme@belanyi.fr";
+      email = lib.my.mkMailAddress "bruno.acme" "belanyi.fr";
       acceptTerms = true;
       # Use DNS wildcard certificate
       certs =