diff --git a/modules/audio-server.nix b/modules/audio-server.nix
index 4edd6d6d..36fd436f 100644
--- a/modules/audio-server.nix
+++ b/modules/audio-server.nix
@@ -104,10 +104,11 @@ in
 
     networking.firewall = {
       allowedTCPPorts = lib.optional cfg.ledfx 80 ++ [
-        4713 # pulseaudio/pipewire network sync
+        4713 # pulseaudio/pipewire tcp sink
       ];
       allowedUDPPorts = [
         5353 # mdns
+        9875 # pulseaudio/pipewire rtp sink
       ];
     };