diff --git a/hosts/default.nix b/hosts/default.nix
index 8ded7cc..378e990 100644
--- a/hosts/default.nix
+++ b/hosts/default.nix
@@ -67,6 +67,7 @@
           self.nixosModules.overlays
           self.nixosModules.unlock-zfs-on-boot
           self.nixosModules.core
+          self.nixosModules.mail
 
           self.inputs.simple-nixos-mailserver.nixosModule
         ];