diff --git a/Lib/plat-mac/bundlebuilder.py b/Lib/plat-mac/bundlebuilder.py
index 9d50f91..9959c95 100755
--- a/Lib/plat-mac/bundlebuilder.py
+++ b/Lib/plat-mac/bundlebuilder.py
@@ -263,7 +263,7 @@
 main="${resdir}/%(mainprogram)s"
 PYTHONPATH="$resdir"
 export PYTHONPATH
-exec "${executable}" "${main}" "${1}"
+exec "${executable}" "${main}" "$@"
 """