diff --git a/html/admin/setup.php b/html/admin/setup.php
index ecddff003..374919609 100644
--- a/html/admin/setup.php
+++ b/html/admin/setup.php
@@ -412,7 +412,7 @@ echo '<hr>';
  echo "<h2>Mise &agrave; jour Repository</h2>";
  $cn=new Database();
  if ( DEBUG == 'false') ob_start();
- $MaxVersion=10;
+ $MaxVersion=DBVERSIONREPO-1;
  for ($i=4;$i<= $MaxVersion;$i++)
    {
  	if ( $cn->get_version() <= $i ) {
diff --git a/html/admin/sql/patch/ac-upgrade11.sql b/html/admin/sql/patch/ac-upgrade11.sql
new file mode 100644
index 000000000..513ef2228
--- /dev/null
+++ b/html/admin/sql/patch/ac-upgrade11.sql
@@ -0,0 +1,25 @@
+begin;
+delete from jnt_use_dos where use_id not in (select use_id from ac_users);
+
+delete from jnt_use_dos where dos_id not in (select dos_id from ac_dossier);
+
+alter table jnt_use_dos add CONSTRAINT jnt_use_dos_dos_id_fkey FOREIGN KEY (dos_id)
+      REFERENCES ac_dossier (dos_id) MATCH SIMPLE
+      ON UPDATE CASCADE ON DELETE CASCADE;
+alter table jnt_use_dos add   CONSTRAINT jnt_use_dos_use_id_fkey FOREIGN KEY (use_id)
+      REFERENCES ac_users (use_id) MATCH SIMPLE
+      ON UPDATE NO ACTION ON DELETE NO ACTION;
+
+
+delete from priv_user where priv_jnt not in (select jnt_id from jnt_use_dos);
+
+alter table jnt_use_dos drop constraint jnt_use_dos_pkey;
+
+alter table jnt_use_dos add constraint jnt_use_dos_pkey PRIMARY KEY (jnt_id);
+
+alter table priv_user add CONSTRAINT priv_user_priv_jnt_fkey FOREIGN KEY (priv_jnt)
+      REFERENCES jnt_use_dos (jnt_id) MATCH SIMPLE
+      ON UPDATE CASCADE ON DELETE cascade;
+alter table version add  primary key (val);
+update version set val=12;
+commit;
diff --git a/html/user_login.php b/html/user_login.php
index 49508d210..201a4b1eb 100644
--- a/html/user_login.php
+++ b/html/user_login.php
@@ -55,7 +55,24 @@ echo <<<EOF
 EOF;
 exit();
 }
+$ac=new Database();
 
+/* check if repo valid */
+if ( $ac->exist_table('version') == false) {
+  echo '<h2 class="error" style="font-size:12px">'._("Base de donnée invalide").'</h2>';
+  $base=dirname($_SERVER['REQUEST_URI']);
+  exit();
+}
+
+/* check repo version */
+$version = $ac->get_value('select val from version');
+if ( $version < DBVERSIONREPO ) {
+  echo '<h2 class="error" style="font-size:12px">'._("Votre base de données n'est pas à jour").'   ';
+  $a=_("cliquez ici pour appliquer le patch");
+  $base=dirname($_SERVER['REQUEST_URI']).'/admin/setup.php';
+  echo '<a hreF="'.$base.'">'.$a.'</a></h2>';
+
+}
 
 html_page_start($_SESSION['g_theme']);
 include_once("user_menu.php");
diff --git a/include/constant.php b/include/constant.php
index 3e96cb3d2..c63ed67cf 100644
--- a/include/constant.php
+++ b/include/constant.php
@@ -27,6 +27,7 @@ require_once ('config.inc.php');
 require_once('constant.security.php');
 
 define ("DBVERSION",83);
+define ("DBVERSIONREPO",12);
 
 define ("MAX_COMPTE",4);
 define ('MAX_ARTICLE',9);