diff --git a/development.cfg b/development.cfg
index dfd386c..9ea399c 100644
--- a/development.cfg
+++ b/development.cfg
@@ -17,11 +17,13 @@ parts +=
     site
     omelette
 allow-picked-versions = false
-test-eggs +=
-    design.plone.policy[test]
-    design.plone.contenttypes[test]
-test-eggs -=
-    plone.app.portlets [test]
+# XXX: se si aggiungono i test di design.* di rompono quelli di plone, in particolare
+#      plone.app.portlets. rimuoverlo col -= del buildout sembra non funzionare
+# test-eggs +=
+#     design.plone.policy[test]
+#     design.plone.contenttypes[test]
+# test-eggs -=
+#     plone.app.portlets [test]
 
 [instance]
 eggs +=