diff --git a/system/nixinator/default.nix b/system/nixinator/default.nix
index 201ef4fd..e0025ee2 100644
--- a/system/nixinator/default.nix
+++ b/system/nixinator/default.nix
@@ -58,6 +58,7 @@
         # 31431 # Parsec
         5173 # SvelteKit
         8090 # PocketBase
+        4242 # Lan-Mouse
       ];
 
       allowedUDPPorts = [
@@ -66,6 +67,7 @@
         # 31431 # Parsec
         5173 # SvelteKit
         8090 # PocketBase
+        4242 # Lan-Mouse
       ];
 
       wireguard-tunnels = {