diff --git a/ops/nixos/totoro/default.nix b/ops/nixos/totoro/default.nix
index 260c414d98..b6ddc5e4ea 100644
--- a/ops/nixos/totoro/default.nix
+++ b/ops/nixos/totoro/default.nix
@@ -471,5 +471,7 @@ in {
     };
   };
 
+  my.prometheus.additionalExporterPorts.trains = 2112;
+
   system.stateVersion = "20.03";
 }