diff --git a/systems/x86_64-linux/x1/default.nix b/systems/x86_64-linux/x1/default.nix
index 97252ec..af3504a 100644
--- a/systems/x86_64-linux/x1/default.nix
+++ b/systems/x86_64-linux/x1/default.nix
@@ -136,6 +136,8 @@ with lib.metacfg;
   systemd.services.gnome-remote-desktop = {
     wantedBy = [ "graphical.target" ];
   };
+  networking.firewall.allowedTCPPorts = [ 3389 ];
+  networking.firewall.allowedUDPPorts = [ 3389 ];
 
   environment.sessionVariables = {
     LIBVA_DRIVER_NAME = "iHD";