diff --git a/mysql/migration/2.0.0-2.1.0.sql b/mysql/migration/2.0.0-2.1.0.sql
index 0466881fee7..0154e5a9065 100644
--- a/mysql/migration/2.0.0-2.1.0.sql
+++ b/mysql/migration/2.0.0-2.1.0.sql
@@ -60,8 +60,8 @@ ALTER TABLE llx_societe modify parent             integer;
 UPDATE llx_societe set parent = null where parent = 0;
 
 alter table llx_product add gencode varchar(255) DEFAULT NULL;
-alter table llx_product add weight float DEFAULT '0';
-alter table llx_product add units char(2) DEFAULT 'kg';
+alter table llx_product add weight float DEFAULT ;
+alter table llx_product add units tinyint DEFAULT 0;
 alter table llx_product add canvas varchar(15) DEFAULT '';
 
 insert into llx_cond_reglement(rowid, code, sortorder, active, libelle, libelle_facture, fdm, nbjour) values (6,'PROFORMA',    6,1, 'Proforma','Réglement avant livraison',0,0);