diff --git a/htdocs/install/mysql/migration/2.7.0-2.8.0.sql b/htdocs/install/mysql/migration/2.7.0-2.8.0.sql
index dfaa2b94a06..51256fecd27 100755
--- a/htdocs/install/mysql/migration/2.7.0-2.8.0.sql
+++ b/htdocs/install/mysql/migration/2.7.0-2.8.0.sql
@@ -168,4 +168,10 @@ create table llx_entity
   active			tinyint DEFAULT 1 NOT NULL
 ) type=innodb;
 
-INSERT INTO llx_entity (label, description, datec, fk_user_creat, visible, active) VALUES ('Default Entity', 'This is the default entity', NOW(), 1, 1, 1);
\ No newline at end of file
+INSERT INTO llx_entity (rowid, label, description, datec, fk_user_creat, visible, active) VALUES (1, 'Default Entity', 'This is the default entity', NOW(), 1, 1, 1);
+
+-- Add constraint
+ALTER TABLE llx_fichinterdet ADD INDEX idx_fichinterdet_fk_fichinter (fk_fichinter);
+ALTER TABLE llx_fichinterdet ADD CONSTRAINT fk_fichinterdet_fk_fichinter FOREIGN KEY (fk_fichinter) REFERENCES llx_fichinter (rowid);
+
+
diff --git a/htdocs/install/mysql/tables/llx_fichinter.sql b/htdocs/install/mysql/tables/llx_fichinter.sql
index dcc1c0be79a..284d9b1a555 100644
--- a/htdocs/install/mysql/tables/llx_fichinter.sql
+++ b/htdocs/install/mysql/tables/llx_fichinter.sql
@@ -34,7 +34,7 @@ create table llx_fichinter
   fk_user_author  integer,                    -- createur de la fiche
   fk_user_valid   integer,                    -- valideur de la fiche
   fk_statut       smallint  DEFAULT 0,
-  duree           real,                       -- durée totale de l'intervention
+  duree           real,                       -- duree totale de l'intervention
   description     text,
   note_private    text,
   note_public     text,
diff --git a/htdocs/install/mysql/tables/llx_fichinterdet.key.sql b/htdocs/install/mysql/tables/llx_fichinterdet.key.sql
new file mode 100644
index 00000000000..9b0104ccfe5
--- /dev/null
+++ b/htdocs/install/mysql/tables/llx_fichinterdet.key.sql
@@ -0,0 +1,23 @@
+-- ===================================================================
+-- Copyright (C) 2010 Regis Houssin  <regis@dolibarr.fr>
+--
+-- 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.
+--
+-- $Id$
+-- ===================================================================
+
+
+ALTER TABLE llx_fichinterdet ADD INDEX idx_fichinterdet_fk_fichinter (fk_fichinter);
+ALTER TABLE llx_fichinterdet ADD CONSTRAINT fk_fichinterdet_fk_fichinter FOREIGN KEY (fk_fichinter) REFERENCES llx_fichinter (rowid);