diff --git a/adho-configuration.nix b/adho-configuration.nix
index efc17812f..178903511 100644
--- a/adho-configuration.nix
+++ b/adho-configuration.nix
@@ -98,9 +98,6 @@
       "Lorry Gjest" = {};
       "Amundsengjest" = {};
     };
-
-    # Open Chromecast-related ports
-    firewall.allowedTCPPorts = [ 5556 5558 ];
   };
 
   hardware.bluetooth.enable = true;
diff --git a/configuration.nix b/configuration.nix
index 36c7d4a8f..76466c7e3 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -30,6 +30,9 @@
     "1.0.0.1"
   ];
 
+  # Open Chromecast-related ports
+  firewall.allowedTCPPorts = [ 5556 5558 ];
+
   # Configure emacs:
   # (actually, that's a lie, this only installs emacs!)
   services.emacs = {