diff --git a/flake.nix b/flake.nix
index 335440c..ef4e809 100755
--- a/flake.nix
+++ b/flake.nix
@@ -61,6 +61,7 @@
             ./modules/sops.nix
             ./modules/ldap.nix
             # ./modules/keycloak.nix replaced by portunus
+            ./modules/mail.nix
             ./modules/nginx.nix
             ./modules/hedgedoc.nix
             ./modules/wiki.nix