diff --git a/nix/nixos-module/server/network.nix b/nix/nixos-module/server/network.nix
index f19f740..fe5c02a 100644
--- a/nix/nixos-module/server/network.nix
+++ b/nix/nixos-module/server/network.nix
@@ -75,7 +75,7 @@ in
           LinkLocalAddressing = "no";
         };
       };
-    } // builtins.foldl' (result: net: result // {
+    } // (builtins.foldl' (result: net: result // {
       "${net}" = {
         matchConfig.Name = net;
         networkConfig = {
@@ -83,6 +83,11 @@ in
           LinkLocalAddressing = lib.mkDefault "no";
         };
       };
-    }) {} bridgeNets;
+    }) {} bridgeNets) // builtins.foldl' (result: net: result // {
+      "ext-${net}" = {
+        matchConfig.Name = "ext-${net}";
+        networkConfig.Bridge = net;
+      };
+    }) {} ctNets;
   };
 }