diff --git a/mysql/migration/1.1.0-2.0.0.sql b/mysql/migration/1.1.0-2.0.0.sql
index b0894ebaaa0..2863904757d 100644
--- a/mysql/migration/1.1.0-2.0.0.sql
+++ b/mysql/migration/1.1.0-2.0.0.sql
@@ -481,7 +481,7 @@ alter table llx_entrepot add fk_pays integer DEFAULT 0;
 alter table llx_product add stock_propale integer default 0;
 alter table llx_product add stock_commande integer default 0;
 alter table llx_product add seuil_stock_alerte integer default 0;
-update llx_product set ref=substr(label,0,15) where ref is null;
+update llx_product set ref=substring(label,0,15) where ref is null;
 alter table llx_product modify ref varchar(15) UNIQUE NOT NULL;
 alter table llx_product add note text after description;