diff --git a/machines.nix b/machines.nix
index c89f3db..97a41d3 100644
--- a/machines.nix
+++ b/machines.nix
@@ -65,7 +65,7 @@
 
       # simple-nixos-mailserver email server
       # mail.domain
-      # ./modules/nixos/mailserver.nix
+      ./modules/nixos/mailserver.nix
 
       # roundcube webmail client
       # webmail.domain