diff --git a/NEWS.mdtext b/NEWS.mdtext
index 9f62604..b5f3900 100644
--- a/NEWS.mdtext
+++ b/NEWS.mdtext
@@ -1,5 +1,8 @@
 # InDefero 1.3.3 - xxx xxx xx xx:xx 2012 UTC
 
+**ATTENTION**: InDefero needs Pluf [a45dc195](http://projects.ceondo.com/p/pluf/source/commit/a45dc195)
+or newer to run properly!
+
 ## Bugfixes
 
 - If an anonymous or authenticated user had no access to any project in a 
@@ -10,6 +13,9 @@
   authorized_keys file when the public key data contained slashes (thanks
   to Simon Gareste for the fix!)
 
+- Under PostgreSQL indefero could not be set up because of a circular
+  foreign key dependency. This has been fixed (issue 800).
+
 - Under PostgreSQL new projects could not be created due to a failing
   foreign key relation. Adding project tags was not possible for a similar
   reason. This has been fixed (issue 800, continued).
diff --git a/src/IDF/Migrations/Backup.php b/src/IDF/Migrations/Backup.php
index 7d4083a..7145560 100644
--- a/src/IDF/Migrations/Backup.php
+++ b/src/IDF/Migrations/Backup.php
@@ -119,5 +119,9 @@ function IDF_Migrations_Backup_restore($folder, $name)
     foreach ($full_data as $model => $data) {
         Pluf_Test_Fixture::load($data, false);
     }
+    foreach ($models as $model) {
+        $schema->model = new $model();
+        $schema->createConstraints();
+    }
     return true;
 }
diff --git a/src/IDF/Migrations/Install.php b/src/IDF/Migrations/Install.php
index 74709b3..89b5880 100644
--- a/src/IDF/Migrations/Install.php
+++ b/src/IDF/Migrations/Install.php
@@ -62,6 +62,10 @@ function IDF_Migrations_Install_setup($params=null)
         $schema->model = new $model();
         $schema->createTables();
     }
+    foreach ($models as $model) {
+        $schema->model = new $model();
+        $schema->createConstraints();
+    }
     // Install the permissions
     $perm = new Pluf_Permission();
     $perm->name = 'Project membership';
@@ -122,6 +126,10 @@ function IDF_Migrations_Install_teardown($params=null)
     $schema = new Pluf_DB_Schema($db);
     foreach ($models as $model) {
         $schema->model = new $model();
+        $schema->dropConstraints();
+    }
+    foreach ($models as $model) {
+        $schema->model = new $model();
         $schema->dropTables();
     }
 }