diff --git a/package.json b/package.json
index ae681e0..669278b 100644
--- a/package.json
+++ b/package.json
@@ -6,8 +6,9 @@
   "scripts": {
     "dev": "tauri dev",
     "icons": "tauri icon icon.png",
-    "prepare:tauri-dev": "npm run icons && npm run dev:vite",
-    "prepare:tauri-build": "npm run icons && npm run build:web",
+    "prepare:tauri-dev": "npm run icons && npm run build:backend && npm run dev:vite",
+    "prepare:tauri-build": "npm run icons && npm run build:backend && npm run build:web",
+    "build:backend": "node scripts/build-python-sidecar.mjs",
     "dev:vite": "vite --host 127.0.0.1",
     "dev:web": "vite --host 127.0.0.1 --open",
     "build": "npm run build:web",