diff --git a/package.json b/package.json
index 2a3ca5e..14d2fcf 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
   "scripts": {
     "watch": "npm run build-frontend -- --watch",
     "build-frontend": "vite build",
-    "build-backend": "venv/bin/python setup.py build",
+    "build-backend": "node scripts/build-backend.js",
     "build": "npm run build-frontend && npm run build-backend",
     "electron-postinstall": "electron-builder install-app-deps",
     "electron": "npm run electron-postinstall && npm run build && electron .",
diff --git a/scripts/build-backend.js b/scripts/build-backend.js
new file mode 100755
index 0000000..c4a28bd
--- /dev/null
+++ b/scripts/build-backend.js
@@ -0,0 +1,18 @@
+#!/usr/bin/env node
+
+const { execSync } = require('child_process');
+const path = require('path');
+const os = require('os');
+
+const platform = os.platform();
+const venvPython = platform === 'win32' 
+  ? path.join('venv', 'Scripts', 'python.exe')
+  : path.join('venv', 'bin', 'python');
+
+try {
+  execSync(`${venvPython} setup.py build`, { stdio: 'inherit' });
+} catch (error) {
+  console.error('Build failed:', error.message);
+  process.exit(1);
+}
+