diff --git a/nixos/configuration.nix b/nixos/configuration.nix
index 6133502e..2d4100c8 100644
--- a/nixos/configuration.nix
+++ b/nixos/configuration.nix
@@ -169,6 +169,7 @@ in
   # services.printing.enable = true;
 
   # Enable sound.
+  services.avahi.enable = true;
   sound.enable = true;
   hardware.pulseaudio.enable = true;