diff --git a/nix/packages/by-name/typst-bot/package.nix b/nix/packages/by-name/typst-bot/package.nix
index 2f8920a0..4d831097 100644
--- a/nix/packages/by-name/typst-bot/package.nix
+++ b/nix/packages/by-name/typst-bot/package.nix
@@ -1,11 +1,16 @@
 {
-  rustPlatform,
-  fetchFromGitHub,
   lib,
+  rustPlatform,
+  runCommand,
+  fetchFromGitHub,
 }: let
   rev = "6be5470fcb19e857f76ede9a7f0c96cac63e3abc";
 in
-  rustPlatform.buildRustPackage (finalAttrs: {
+  rustPlatform.buildRustPackage (finalAttrs: let
+    fontDrv = runCommand "typst-bot-font" {} ''
+      cp -r ${finalAttrs.src}/fonts $out
+    '';
+  in {
     pname = "typst-bot";
     version = lib.substring 0 8 rev;
 
@@ -21,11 +26,10 @@ in
       echo 'fn main() { println!("cargo:rustc-env=BUILD_SHA=${rev}"); }' > crates/bot/build.rs
 
       # 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("${finalAttrs.src}/fonts")'
+      substituteInPlace crates/worker/src/sandbox.rs --replace-fail 'read_dir("fonts")' 'read_dir("${fontDrv}")'
 
       # Patch the command calling the worker by name.
-      substituteInPlace crates/bot/src/worker.rs --replace-fail 'Command::new("./worker")' 'Command::new("worker")'
+      substituteInPlace crates/bot/src/worker.rs --replace-fail 'Command::new("./worker")' 'Command::new("${placeholder "out"}/bin/worker")'
     '';
 
     cargoBuildFlags = ["--workspace"];