diff --git a/nixos/modules/programs/localsend.nix b/nixos/modules/programs/localsend.nix
index 14005c983a1a..a4580057ba4b 100644
--- a/nixos/modules/programs/localsend.nix
+++ b/nixos/modules/programs/localsend.nix
@@ -24,6 +24,7 @@ in
   config = lib.mkIf cfg.enable {
     environment.systemPackages = [ cfg.package ];
     networking.firewall.allowedTCPPorts = lib.optionals cfg.openFirewall [ firewallPort ];
+    networking.firewall.allowedUDPPorts = lib.optionals cfg.openFirewall [ firewallPort ];
   };
 
   meta.maintainers = with lib.maintainers; [ pandapip1 ];
diff --git a/nixos/tests/localsend.nix b/nixos/tests/localsend.nix
index 8c0a6ac68190..551b6dd73ce8 100644
--- a/nixos/tests/localsend.nix
+++ b/nixos/tests/localsend.nix
@@ -16,6 +16,7 @@ import ./make-test-python.nix (
       machine.wait_for_open_port(53317)
       machine.wait_for_window("LocalSend", 10)
       machine.succeed("netstat --listening --program --tcp | grep -P 'tcp.*53317.*localsend'")
+      machine.succeed("netstat --listening --program --udp | grep -P 'udp.*53317.*localsend'")
     '';
   }
 )