diff --git a/buildout.cfg b/buildout.cfg
index f2e6eab..a3a59d0 100644
--- a/buildout.cfg
+++ b/buildout.cfg
@@ -3,9 +3,11 @@ develop = .
 parts = test
 extends = http://svn.zope.org/repos/main/groktoolkit/trunk/grok.cfg
 extensions = mr.developer
+auto-checkout = grok
 
 [versions]
 grokui.admin =
+grok =
 
 [test]
 recipe = zc.recipe.testrunner