diff --git a/mysql/migration/2.0.0-2.1.0.sql b/mysql/migration/2.0.0-2.1.0.sql
index e14d1fc5e3c..5b463d90316 100644
--- a/mysql/migration/2.0.0-2.1.0.sql
+++ b/mysql/migration/2.0.0-2.1.0.sql
@@ -60,7 +60,7 @@ 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 ;
+alter table llx_product add weight real DEFAULT NULL;
 alter table llx_product add weight_units tinyint(1) DEFAULT 0;
 alter table llx_product add canvas varchar(15) DEFAULT '';