diff --git a/ChangeLog b/ChangeLog
index 6310c4ef319..f21879edb5c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -40,6 +40,7 @@ For users:
 - Fix: Broken feature in trips and expense module.
 - Fix: Can use $ in database and login/pass values.
 - Fix: No error on upgrade if there is orphelins tasks.
+- Fix: Failed to login when user agent string was longer than 128.
 
 
 ***** ChangeLog for 2.8 compared to 2.7 *****
diff --git a/htdocs/core/events.class.php b/htdocs/core/events.class.php
index 634df840342..0b95443c7f9 100644
--- a/htdocs/core/events.class.php
+++ b/htdocs/core/events.class.php
@@ -1,5 +1,5 @@
 <?php
-/* Copyright (C) 2007-2009 Laurent Destailleur  <eldy@users.sourceforge.net>
+/* Copyright (C) 2007-2010 Laurent Destailleur  <eldy@users.sourceforge.net>
  * Copyright (C) 2005-2009 Regis Houssin        <regis@dolibarr.fr>
  *
  * This program is free software; you can redistribute it and/or modify
@@ -95,7 +95,7 @@ class Events // extends CommonObject
 		$sql.= " '".$this->type."',";
 		$sql.= " ".$conf->entity.",";
 		$sql.= " '".$_SERVER['REMOTE_ADDR']."',";
-		$sql.= " ".($_SERVER['HTTP_USER_AGENT']?"'".$_SERVER['HTTP_USER_AGENT']."'":'NULL').",";
+		$sql.= " ".($_SERVER['HTTP_USER_AGENT']?"'".dol_trunc($_SERVER['HTTP_USER_AGENT'],250)."'":'NULL').",";
 		$sql.= " ".$this->db->idate($this->dateevent).",";
 		$sql.= " ".($user->id?"'".$user->id."'":'NULL').",";
 		$sql.= " '".addslashes($this->description)."'";
diff --git a/htdocs/install/mysql/migration/2.8.0-2.9.0.sql b/htdocs/install/mysql/migration/2.8.0-2.9.0.sql
index fb53cc71335..d913303c91e 100755
--- a/htdocs/install/mysql/migration/2.8.0-2.9.0.sql
+++ b/htdocs/install/mysql/migration/2.8.0-2.9.0.sql
@@ -198,3 +198,5 @@ ALTER TABLE llx_element_milestone ADD CONSTRAINT fk_element_milestone_fk_milesto
 ALTER TABLE llx_deplacement ADD COLUMN fk_statut INTEGER DEFAULT 1  NOT NULL after type;
 
 drop table llx_appro;
+
+ALTER TABLE llx_events MODIFY COLUMN user_agent     varchar(255) NULL;
diff --git a/htdocs/install/mysql/tables/llx_events.sql b/htdocs/install/mysql/tables/llx_events.sql
index cb80ca65e71..57ba9cd206b 100644
--- a/htdocs/install/mysql/tables/llx_events.sql
+++ b/htdocs/install/mysql/tables/llx_events.sql
@@ -33,7 +33,7 @@ create table llx_events
   fk_user        integer,                     -- id user
   description    varchar(250) NOT NULL,       -- full description of action
   ip             varchar(32) NOT NULL,        -- ip
-  user_agent     varchar(128) NULL,           -- user agent
+  user_agent     varchar(255) NULL,           -- user agent
   fk_object      integer                      -- id of related object
 ) type=innodb;