diff --git a/flake.nix b/flake.nix
index 86e058a..ce041b8 100644
--- a/flake.nix
+++ b/flake.nix
@@ -63,7 +63,7 @@ rust-project TODO: write shell script for automatically updating `cargoHash`
           buildAndTestSubdir = "status_cloud";
           cargoHash = "sha256-mMxHI/rU1Gd5UR+hZ+5+FnBrff8uF+SrEvGJT7wh5tI=";
           preBuild = ''
-            sed -i 's/Command::new("hddtemp")/${nixpkgs.lib.escape [ "/" ] "Command::new(\"${pkgs.hddtemp}\")"}/g' status_cloud/src/main.rs
+            sed -i 's/Command::new("hddtemp")/Command::new("${nixpkgs.lib.escape [ "/" ] "${pkgs.hddtemp}"}")/g' status_cloud/src/main.rs
           '';
           meta = meta // {
             description = "Server status saved to a nextcloud note service.";