diff --git a/htdocs/install/mysql/migration/5.0.0-6.0.0.sql b/htdocs/install/mysql/migration/5.0.0-6.0.0.sql
index e9c16d6a5fd..6469a47b4c7 100644
--- a/htdocs/install/mysql/migration/5.0.0-6.0.0.sql
+++ b/htdocs/install/mysql/migration/5.0.0-6.0.0.sql
@@ -25,7 +25,7 @@
 -- -- VMYSQL4.1 DELETE FROM llx_usergroup_user      WHERE fk_usergroup NOT IN (SELECT rowid from llx_usergroup);
 
 
-ALTER TABLE llx_opensurvey_sondage MODIFY COLUMN tms timestamp DEFAULT '2001-01-01 00:00:00';
+-- VMYSQL4.1 ALTER TABLE llx_opensurvey_sondage MODIFY COLUMN tms timestamp DEFAULT '2001-01-01 00:00:00';
 
 -- Clean corrupted values for tms
 -- VMYSQL4.1 SET sql_mode = 'ALLOW_INVALID_DATES';
@@ -36,7 +36,7 @@ ALTER TABLE llx_opensurvey_sondage MODIFY COLUMN tms timestamp DEFAULT '2001-01-
 -- VMYSQL4.3 ALTER TABLE llx_opensurvey_sondage MODIFY COLUMN date_fin DATETIME NULL DEFAULT NULL;
 -- VPGSQL8.2 ALTER TABLE llx_opensurvey_sondage ALTER COLUMN date_fin DROP NOT NULL;
 
-ALTER TABLE llx_opensurvey_sondage MODIFY COLUMN tms timestamp DEFAULT CURRENT_TIMESTAMP;
+-- VMYSQL4.1 ALTER TABLE llx_opensurvey_sondage MODIFY COLUMN tms timestamp DEFAULT CURRENT_TIMESTAMP;
 
 ALTER TABLE llx_opensurvey_sondage ADD COLUMN fk_user_creat integer NOT NULL DEFAULT 0;
 ALTER TABLE llx_opensurvey_sondage ADD COLUMN status integer DEFAULT 1 after date_fin;