diff --git a/nix/packages/by-name/typst-bot/package.nix b/nix/packages/by-name/typst-bot/package.nix
index ee4514c1..2f8920a0 100644
--- a/nix/packages/by-name/typst-bot/package.nix
+++ b/nix/packages/by-name/typst-bot/package.nix
@@ -5,7 +5,7 @@
 }: let
   rev = "6be5470fcb19e857f76ede9a7f0c96cac63e3abc";
 in
-  rustPlatform.buildRustPackage rec {
+  rustPlatform.buildRustPackage (finalAttrs: {
     pname = "typst-bot";
     version = lib.substring 0 8 rev;
 
@@ -22,7 +22,7 @@ in
 
       # Patch the fonts with src
       # FIXME: is this the right way to patch
-      substituteInPlace crates/worker/src/sandbox.rs --replace-fail 'read_dir("fonts")' 'read_dir("${src}/fonts")'
+      substituteInPlace crates/worker/src/sandbox.rs --replace-fail 'read_dir("fonts")' 'read_dir("${finalAttrs.src}/fonts")'
 
       # Patch the command calling the worker by name.
       substituteInPlace crates/bot/src/worker.rs --replace-fail 'Command::new("./worker")' 'Command::new("worker")'
@@ -31,9 +31,9 @@ in
     cargoBuildFlags = ["--workspace"];
 
     cargoLock = {
-      lockFile = "${src}/Cargo.lock";
+      lockFile = "${finalAttrs.src}/Cargo.lock";
       outputHashes = {
         "poise-0.6.1" = "sha256-AZtF5P7E5xzHJcNdc1k61P2Rr8vIt+oun9vFYSr0nSc=";
       };
     };
-  }
+  })