diff --git a/bundle/config b/bundle/config
new file mode 100644
index 0000000..e4821da
--- /dev/null
+++ b/bundle/config
@@ -0,0 +1,3 @@
+---
+BUNDLE_BUILD__LIBV8: "--with-system-v8"
+BUNDLE_BUILD__THERUBYRACER: "--with-system-v8"