diff --git a/m/tent/configuration.nix b/m/tent/configuration.nix
index 327d4d4..956a191 100644
--- a/m/tent/configuration.nix
+++ b/m/tent/configuration.nix
@@ -12,6 +12,7 @@
     ./gitlab-runner.nix
     ./gitea.nix
     ../hut/public-inbox.nix
+    ../hut/msmtp.nix
     ../module/p.nix
   ];