diff --git a/main/install/migrate-db-1.6.x-1.8.0-pre.sql b/main/install/migrate-db-1.6.x-1.8.0-pre.sql
index 868635d236..26718b794d 100644
--- a/main/install/migrate-db-1.6.x-1.8.0-pre.sql
+++ b/main/install/migrate-db-1.6.x-1.8.0-pre.sql
@@ -156,11 +156,13 @@ ALTER TABLE track_e_access CHANGE access_cours_code access_cours_code varchar(40
 ALTER TABLE track_e_lastaccess CHANGE access_id access_id bigint NOT NULL auto_increment;
 ALTER TABLE track_e_lastaccess CHANGE acces_cours_code access_cours_code varchar(40) NOT NULL default '';
 ALTER TABLE track_e_lastaccess ADD access_session_id int unsigned default NULL;
-ALTER TABLE track_e_downloads CHANGE down_cours_id down_cours_id varchar(20) NOT NULL default '';
+ALTER TABLE track_e_downloads CHANGE down_cours_id down_cours_id varchar(40) NOT NULL default '';
 ALTER TABLE track_e_downloads CHANGE down_doc_path down_doc_path varchar(255) NOT NULL default '';
 ALTER TABLE track_e_links CHANGE links_cours_id links_cours_id varchar(40) NOT NULL default '';
 ALTER TABLE track_e_login ADD logout_date datetime NULL default NULL;
 ALTER TABLE track_e_online ADD course varchar(40) default NULL;
+ALTER TABLE track_e_uploads CHANGE upload_cours_id upload_cours_id varchar(40) NOT NULL default '';
+
 
 -- xxUSERxx
 ALTER TABLE user_course_category ADD sort int;