diff --git a/.chromiumos-build b/chromiumos-build.cfg
similarity index 58%
rename from .chromiumos-build
rename to chromiumos-build.cfg
index 41a8258801..8c13033c24 100644
--- a/.chromiumos-build
+++ b/chromiumos-build.cfg
@@ -1,5 +1,5 @@
 [Options]
 # ../third_party/xscreensaver is a bit of a wart here, necessitated by odd
 # directory layout.
-builddirs: ../build/%(architecture)s/local_packages .. ../platform ../third_party ../third_party/xscreensaver
+builddirs: ../build/%(architecture)s/external .. ../platform ../third_party ../third_party/xscreensaver
 destdir: ../build/%(architecture)s/local_packages