update preffix, in order to avoid pkg conflicts on pool
diff --git a/aptly/server/mirror/ubuntu/trusty/ubuntucloud.yml b/aptly/server/mirror/ubuntu/trusty/ubuntucloud.yml
index 84333ce..e940d37 100644
--- a/aptly/server/mirror/ubuntu/trusty/ubuntucloud.yml
+++ b/aptly/server/mirror/ubuntu/trusty/ubuntucloud.yml
@@ -34,7 +34,7 @@
           publisher:
             component: liberty
             distributions:
-              - nightly/trusty
+              - trusty/nightly
         trusty-updates-mitaka:
           source: http://ubuntu-cloud.archive.canonical.com/ubuntu/
           distribution: trusty-updates/mitaka
@@ -45,4 +45,4 @@
           publisher:
             component: mitaka
             distributions:
-              - nightly/trusty
+              - trusty/nightly