diff --git a/mysql/tables/llx_societe.key.sql b/mysql/tables/llx_societe.key.sql
new file mode 100644
index 00000000000..9ae02d5c513
--- /dev/null
+++ b/mysql/tables/llx_societe.key.sql
@@ -0,0 +1,26 @@
+-- ===================================================================
+-- Copyright (C) 2005 Laurent Destailleur <eldy@users.sourceforge.net>
+--
+-- This program is free software; you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation; either version 2 of the License, or
+-- (at your option) any later version.
+--
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with this program; if not, write to the Free Software
+-- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+--
+-- $Id$
+-- $Source$
+--
+-- ===================================================================
+
+
+ALTER TABLE llx_societe ADD UNIQUE uk_prefix_comm(prefix_comm);
+ALTER TABLE llx_societe ADD UNIQUE uk_code_client(code_client);
+ALTER TABLE llx_societe ADD UNIQUE uk_code_compta(code_compta);
diff --git a/mysql/tables/llx_societe.sql b/mysql/tables/llx_societe.sql
index 3ea088aa6fe..da61359d7de 100644
--- a/mysql/tables/llx_societe.sql
+++ b/mysql/tables/llx_societe.sql
@@ -59,8 +59,6 @@ create table llx_societe
   rubrique           varchar(255),                        -- champ rubrique libre
   fk_user_creat      integer,                             -- utilisateur qui a créé l'info
   fk_user_modif      integer,                             -- utilisateur qui a modifié l'info
-  remise_client      real           DEFAULT 0,            -- remise systématique pour le client
-
-  UNIQUE INDEX(prefix_comm)
+  remise_client      real           DEFAULT 0             -- remise systématique pour le client
 )type=innodb;