diff --git a/lib/Alchemy/Phrasea/Controller/Admin/Databox.php b/lib/Alchemy/Phrasea/Controller/Admin/Databox.php
index 0cb0c0073a..eb11bf8041 100644
--- a/lib/Alchemy/Phrasea/Controller/Admin/Databox.php
+++ b/lib/Alchemy/Phrasea/Controller/Admin/Databox.php
@@ -395,21 +395,21 @@ class Databox implements ControllerProviderInterface
         try {
             $baseId = \collection::mount_collection($app, $app['phraseanet.appbox']->get_databox($databox_id), $collection_id, $app['authentication']->getUser());
 
-            if (null == $othCollSel = $request->request->get("othcollsel")) {
-                $app->abort(400);
-            }
+            $othCollSel = (int) $request->request->get("othcollsel") ?: null;
 
-            $query = new \User_Query($app);
-            $n = 0;
+            if (null !== $othCollSel) {
+                $query = new \User_Query($app);
+                $n = 0;
 
-            while ($n < $query->on_base_ids([$othCollSel])->get_total()) {
-                $results = $query->limit($n, 50)->execute()->get_results();
+                while ($n < $query->on_base_ids([$othCollSel])->get_total()) {
+                    $results = $query->limit($n, 50)->execute()->get_results();
+    
+                    foreach ($results as $user) {
+                        $app['acl']->get($user)->duplicate_right_from_bas($othCollSel, $baseId);
+                    }
 
-                foreach ($results as $user) {
-                    $app['acl']->get($user)->duplicate_right_from_bas($othCollSel, $baseId);
+                    $n += 50;
                 }
-
-                $n += 50;
             }
 
             $app['phraseanet.appbox']->get_connection()->commit();
diff --git a/lib/classes/collection.php b/lib/classes/collection.php
index f9380219fd..1f594991fc 100644
--- a/lib/classes/collection.php
+++ b/lib/classes/collection.php
@@ -546,6 +546,17 @@ class collection implements cache_cacheableInterface
         return $this;
     }
 
+    private static function getNewOrder(\connection_pdo $conn, $sbas_id)
+    {
+        $sql = "SELECT GREATEST(0, MAX(ord)) + 1 AS ord FROM bas WHERE sbas_id = :sbas_id";
+        $stmt = $conn->prepare($sql);
+        $stmt->execute(array(':sbas_id' => $sbas_id));
+        $ord = $stmt->fetch(\PDO::FETCH_ASSOC);
+        $stmt->closeCursor();
+
+        return $ord['ord'] ?: 1;
+    }
+
     public static function create(Application $app, databox $databox, appbox $appbox, $name, User_Adapter $user = null)
     {
         $sbas_id = $databox->get_sbas_id();
@@ -560,12 +571,6 @@ class collection implements cache_cacheableInterface
                 </sugestedValues>
             </baseprefs>';
 
-        $sql = "SELECT GREATEST(0, MAX(ord)) + 1 AS ord FROM bas WHERE sbas_id = :sbas_id";
-        $stmt = $conn->prepare($sql);
-        $stmt->execute([':sbas_id' => $sbas_id]);
-        $ord = $stmt->fetch(\PDO::FETCH_ASSOC);
-        $stmt->closeCursor();
-
         $sql = "INSERT INTO coll (coll_id, asciiname, prefs, logo)
                 VALUES (null, :name, :prefs, '')";
 
@@ -587,7 +592,7 @@ class collection implements cache_cacheableInterface
         $stmt->execute([
             ':server_coll_id' => $new_id,
             ':sbas_id' => $sbas_id,
-            ':ord' => $ord['ord'] ?: 1,
+            ':ord' => self::getNewOrder($conn, $sbas_id),
         ]);
         $stmt->closeCursor();
 
@@ -639,11 +644,15 @@ class collection implements cache_cacheableInterface
     public static function mount_collection(Application $app, databox $databox, $coll_id, User_Adapter $user)
     {
 
-        $sql = "INSERT INTO bas (base_id, active, server_coll_id, sbas_id, aliases)
+        $sql = "INSERT INTO bas (base_id, active, server_coll_id, sbas_id, aliases, ord)
             VALUES
-            (null, 1, :server_coll_id, :sbas_id, '')";
+            (null, 1, :server_coll_id, :sbas_id, '', :ord)";
         $stmt = $databox->get_appbox()->get_connection()->prepare($sql);
-        $stmt->execute([':server_coll_id' => $coll_id, ':sbas_id'        => $databox->get_sbas_id()]);
+        $stmt->execute(array(
+            ':server_coll_id' => $coll_id,
+            ':sbas_id'        => $databox->get_sbas_id(),
+            ':ord'            => self::getNewOrder($databox->get_appbox()->get_connection(), $databox->get_sbas_id()),
+        ));
         $stmt->closeCursor();
 
         $new_bas = $databox->get_appbox()->get_connection()->lastInsertId();
@@ -655,7 +664,8 @@ class collection implements cache_cacheableInterface
 
         phrasea::reset_baseDatas($databox->get_appbox());
 
-        self::set_admin($new_bas, $user);
+        $coll = self::get_from_base_id($app, $new_bas);
+        $coll->set_admin($new_bas, $user);
 
         return $new_bas;
     }
diff --git a/templates/web/admin/databox/databox.html.twig b/templates/web/admin/databox/databox.html.twig
index f985217e4d..ebc17153f6 100644
--- a/templates/web/admin/databox/databox.html.twig
+++ b/templates/web/admin/databox/databox.html.twig
@@ -177,7 +177,7 @@
                 {% for collId, name in databox.get_mountable_colls() %}
                     <li>
                         <form class="form-inline" method="post" action="{{ path('admin_database_mount_collection', {'databox_id': databox.get_sbas_id(), 'collection_id' : collId }) }}">
-                            {{ "Monter" | trans }} {{ name }}
+                            {% trans %}Monter la collection {{ name }}{% endtrans %}<br/>
                             {% if app['acl'].get(app['authentication'].getUser()).get_granted_base(["canadmin"]) | length > 0 %}
                                 <label for="othcollsel">{{ "admin::base:collection: Vous pouvez choisir une collection de reference pour donenr des acces" | trans }}</label>
                                 <select id="othcollsel" name="othcollsel" >