diff --git a/htdocs/install/mysql/migration/4.0.0-5.0.0.sql b/htdocs/install/mysql/migration/4.0.0-5.0.0.sql
index 132085de098..cb70d8267ce 100644
--- a/htdocs/install/mysql/migration/4.0.0-5.0.0.sql
+++ b/htdocs/install/mysql/migration/4.0.0-5.0.0.sql
@@ -25,7 +25,8 @@
 -- -- VMYSQL4.1 DELETE FROM llx_usergroup_user      WHERE fk_usergroup NOT IN (SELECT rowid from llx_usergroup);
 
 -- after changing const name, please insure that old constant was rename
-UPDATE llx_const SET name = 'THIRDPARTY_DEFAULT_CREATE_CONTACT' WHERE name='MAIN_THIRPARTY_CREATION_INDIVIDUAL'
+UPDATE llx_const SET name = 'THIRDPARTY_DEFAULT_CREATE_CONTACT' WHERE name='MAIN_THIRPARTY_CREATION_INDIVIDUAL'  -- under 3.9.0
+UPDATE llx_const SET name = 'THIRDPARTY_DEFAULT_CREATE_CONTACT' WHERE name='MAIN_THIRDPARTY_CREATION_INDIVIDUAL' -- under 4.0.1
 
 -- VPGSQL8.2 ALTER TABLE llx_product_lot ALTER COLUMN entity SET DEFAULT 1;
 ALTER TABLE llx_product_lot MODIFY COLUMN entity integer DEFAULT 1;