diff --git a/python/scripts/build-wheels.mjs b/python/scripts/build-wheels.mjs
index 5dac7025..7d810408 100644
--- a/python/scripts/build-wheels.mjs
+++ b/python/scripts/build-wheels.mjs
@@ -253,6 +253,11 @@ with tempfile.TemporaryDirectory() as tmpdir:
     with zipfile.ZipFile(src_wheel, 'r') as zf:
         zf.extractall(tmpdir)
     
+    # Restore executable bit on the CLI binary (setuptools strips it)
+    for bin_path in (tmpdir / 'copilot' / 'bin').iterdir():
+        if bin_path.name in ('copilot', 'copilot.exe'):
+            bin_path.chmod(0o755)
+    
     # Find and update WHEEL file
     wheel_info_dirs = list(tmpdir.glob('*.dist-info'))
     if not wheel_info_dirs: