diff --git a/nixos/boxes/castle/default.nix b/nixos/boxes/castle/default.nix
index 32daedb..d92c412 100644
--- a/nixos/boxes/castle/default.nix
+++ b/nixos/boxes/castle/default.nix
@@ -102,7 +102,7 @@ in
           };
 
           pipewire.extraConfig.pipewire = {
-            "context.properties" = {
+            "10-buffer"."context.properties" = {
               "default.clock.quantum" = 128;
               "default.clock.max-quantum" = 128;
             };