diff --git a/nix/module.nix b/nix/module.nix
index 5099721..953dce0 100644
--- a/nix/module.nix
+++ b/nix/module.nix
@@ -82,5 +82,9 @@ in
         Accept = "yes";
       };
     };
+
+    networking.firewall.allowedTCPPorts = [
+      17
+    ];
   };
 }