diff --git a/modules/nixos/hardware/audio/default.nix b/modules/nixos/hardware/audio/default.nix
index 4804314..f7fc383 100644
--- a/modules/nixos/hardware/audio/default.nix
+++ b/modules/nixos/hardware/audio/default.nix
@@ -23,10 +23,10 @@
     in {
       pipewire."92-low-latency" = {
         "context.properties" = {
-          "default.clock.rate" = ${rate};
-          "default.clock.quantum" = ${quantum};
-          "default.clock.min-quantum" = ${quantum};
-          "default.clock.max-quantum" = ${quantum};
+          "default.clock.rate" = "${rate}";
+          "default.clock.quantum" = "${quantum}";
+          "default.clock.min-quantum" = "${quantum}";
+          "default.clock.max-quantum" = "${quantum}";
         };
       };