diff --git a/root.bp b/root.bp
index 7e4636f8c..332032ccd 100644
--- a/root.bp
+++ b/root.bp
@@ -38,4 +38,5 @@ optional_subdirs = [
     "system/security/*",
     "system/tools/*",
     "test/vts",
+    "vendor/*/*",
 ]