diff --git a/oven/configuration.nix b/oven/configuration.nix
index ce18e43..ca26c11 100644
--- a/oven/configuration.nix
+++ b/oven/configuration.nix
@@ -49,7 +49,7 @@ in
       forwardPorts =
         map (port: {
           destination =
-            toString vars.ovenNat.pastila.address ++ ":" ++ toString port.num;
+            toString vars.ovenNat.pastila.address + ":" + toString port.num;
           proto = port.proto;
           sourcePort = port.num;
         }) vars.ovenNat.forwardPorts;
@@ -73,7 +73,6 @@ in
     ];
   };
 
-  services.openssh.settings.PermitRootLogin = "no";
   services.openssh.ports = [ 2222 ];
 
   # Set up the hypervisor