diff --git a/htdocs/install/mysql/migration/14.0.0-15.0.0.sql b/htdocs/install/mysql/migration/14.0.0-15.0.0.sql
index 69d7c93af5f..b57d995c251 100644
--- a/htdocs/install/mysql/migration/14.0.0-15.0.0.sql
+++ b/htdocs/install/mysql/migration/14.0.0-15.0.0.sql
@@ -507,8 +507,8 @@ INSERT INTO llx_c_action_trigger (code,label,description,elementtype,rang) value
 INSERT INTO llx_c_action_trigger (code,label,description,elementtype,rang) values ('HOLIDAY_CANCEL','Holiday canceled','Executed when a holiday is canceled','holiday',802);
 INSERT INTO llx_c_action_trigger (code,label,description,elementtype,rang) values ('HOLIDAY_DELETE','Holiday deleted','Executed when a holiday is deleted','holiday',804);
 
--- Delete old mexican legal forms
-DELETE FROM llx_c_forme_juridique WHERE code IN ('15401', '15402', '15403', '15404', '15405', '15406');
+-- We do not delete old mexican legal forms because they may have been used. User will have to insert the new one manually not inserted because of conflict if he need them.
+--DELETE FROM llx_c_forme_juridique WHERE code IN ('15401', '15402', '15403', '15404', '15405', '15406');
 
 INSERT INTO llx_c_forme_juridique (fk_pays, code, libelle, active) VALUES (154, '15401', '601 - General de Ley Personas Morales', 1);
 INSERT INTO llx_c_forme_juridique (fk_pays, code, libelle, active) VALUES (154, '15402', '603 - Personas Morales con Fines no Lucrativos', 1);